Brought to you in part by:

Great deals on auto restoration supplies!

.


  Mustangsandmore Forums
  '64 1/2 to '73 -- The Classic Mustang
  Changing from 302 to 351W Heads on a 302?

Post New Topic  Post A Reply
profile | register | preferences | faq | search

next newest topic | next oldest topic
Author Topic:   Changing from 302 to 351W Heads on a 302?
Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 07-22-2002 12:11 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
What all is involved in the switch? What are the pros and cons of the switch? Whats a fair price for the heads?

Thanks.

------------------
Dustin C
[IMG]http://pages.moparpages.com/duster/sigs/hell_fish.gif[/IMG]
56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger

IP: Logged

Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 07-22-2002 01:31 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Nothing to it. A straight bolt in. Shouldered bolts is all you need as the 351 heads use 1/2 inch bolts.
No cons, all pros. You loose a bit of compression, but gain a bunch of air flow.

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 07-22-2002 02:00 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
Valve covers are the same, right? Will I hurt anything by using the stock exhaust manifolds and will they bolt up? Do they use the push rods?

Is $150 each for rebuilt heads a good deal?

Thanks. I might be buying a set this afternoon.

------------------
Dustin C
[IMG]http://pages.moparpages.com/duster/sigs/hell_fish.gif[/IMG]
56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 07-22-2002 02:23 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
One last question. What head gasket do you use? The 302 or the 351W.

IP: Logged

Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 07-22-2002 02:33 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Head gaskets are the same. You will use 351 intake gaskets though. Exhaust manifolds will fit but they will cost you 25 HP!!!!!!!!

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl

IP: Logged

67mike
Gearhead

Posts: 166
From: Arab,AL
Registered: Mar 2001

posted 07-22-2002 03:26 PM     Click Here to See the Profile for 67mike   Click Here to Email 67mike     Edit/Delete Message   Reply w/Quote
Not to butt in on your topic, But if you were to use 351 heads with flat-top pistons would that be okay compression wise? I have some hedmann hedders to use justtrying to see some options - TIA Mike

------------------
'67 coupe, factory R* code (Rust Code)
http://mustangsandmore.50megs.com/67mike.jpg

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 07-22-2002 03:47 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
Good question 67Mike. The more info the better.

------------------
Dustin C
[IMG]http://pages.moparpages.com/duster/sigs/hell_fish.gif[/IMG]
56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 07-23-2002 08:33 AM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
I got the heads last night. I will try to put them on later this week. Gotta hit the performance shop and get the gaskets and bolts I will need. New question. These heads seem to have an extra cooling passage. These will be blocked off, right?

------------------
Dustin C
[IMG]http://pages.moparpages.com/duster/sigs/hell_fish.gif[/IMG]
56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger

IP: Logged

Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 07-24-2002 02:28 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
That's why you will use 351 intake gaskets, or better yet just get some #1250 Fel-PRo's.

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 07-24-2002 02:51 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
Yeah, I will get the Fel-Pro's. On a good note, the maker of the EZ out kit I bought is going to help me pay for my new heads. Not much, but it would pay to have the EZ out removed by a pro.

------------------
Dustin C

56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger

[This message has been edited by Hell_Fish (edited 07-24-2002).]

IP: Logged

Rory McNeil
Gearhead

Posts: 1615
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 07-24-2002 06:10 PM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
Depending on the pistons & heads on your current 302, you may even pick up some compression. On my 78 Fairmonts original (but recently rebuilt at the time) 302, it had the flat top pistons with eyebrows, & the D8 smogger heads with the large 69cc chambers. About 6 or 7 years ago, I installed a pair of C9 351W heads with the 58cc chambers.This picked up the compression by almost a full point. The heads were given new guides, hardened exh. seats,new stock sized (1.84"I, 1.54"E) valves, & a regular machine shop valve job. I used the original head bolts, but with Mr. Gasket head bolt washers (SB Chev. application), & the intake gaskets were the later (78?&up) versions with the large square coolant passages, which covered the "L" shaped 351W passages just fine. With these heads, I knocked 6 tenths of my 1/4 mile ET`s, & the now 9.2-1 compression ratio still lets me run fine on regular gas.

------------------
78 Fairmont 428 4 speed [email protected]
80 Fairmont 302 5 speed [email protected]
85 Mustang NHRA Stocker under construction, 302 5 speed

IP: Logged

ice'68
Gearhead

Posts: 127
From: Fresno, CA
Registered: Apr 2002

posted 07-24-2002 09:08 PM     Click Here to See the Profile for ice'68   Click Here to Email ice'68     Edit/Delete Message   Reply w/Quote
Nice Sig ya got there Dustin

IP: Logged

Gearhead
Gearhead

Posts: 2177
From: Brisbane, Australia
Registered: Mar 2000

posted 07-25-2002 12:40 PM     Click Here to See the Profile for Gearhead   Click Here to Email Gearhead     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Rory McNeil:
Depending on the pistons & heads on your current 302, you may even pick up some compression. On my 78 Fairmonts original (but recently rebuilt at the time) 302, it had the flat top pistons with eyebrows, & the D8 smogger heads with the large 69cc chambers. About 6 or 7 years ago, I installed a pair of C9 351W heads with the 58cc chambers.This picked up the compression by almost a full point. The heads were given new guides, hardened exh. seats,new stock sized (1.84"I, 1.54"E) valves, & a regular machine shop valve job. I used the original head bolts, but with Mr. Gasket head bolt washers (SB Chev. application), & the intake gaskets were the later (78?&up) versions with the large square coolant passages, which covered the "L" shaped 351W passages just fine. With these heads, I knocked 6 tenths of my 1/4 mile ET`s, & the now 9.2-1 compression ratio still lets me run fine on regular gas.


Very interesting Rory!! I am looking at a similar swap onto my little 302 in the next year. I have the stock 1979 smogger heads (69 cc chambers?) on my car still, and would be switching to a set of '69 351 heads with the 1.84/1.54 valves as well. Would I be looking at a similar increase in compression? My pistons are cast flat-tops with eyebrows, so it sounds like we have VERY similar set ups.

I'm already very happy with the way my engine is running, and if I could bump the compression a point, plus increase the flow at the same time, I would be an extremely happy camper.

I'm starting to think that I should take the engine apart (again) and put in a set of forged TRW pistons, stronger rods and balance the whole rotating assembly! Geez, us car guys are just never satisfied, are we!

------------------
Cheers,
Ian
M&M Member #395
-------------------
'79 Mustang Indy 500 Pace Car
Ian's Pace Car Website
Vancouver Island Mustang Association Website
Indy Pace Car Registry of Mustangs Official Website

"A friend will bail you out of jail after you do something stupid... a real friend will be sitting beside you saying 'That was SO COOL!!'".

IP: Logged

Rory McNeil
Gearhead

Posts: 1615
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 07-25-2002 02:48 PM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
Yes, Ian, your 79 short block & heads would be identical to my 78 Fairmonts. Well worth the swap. As for the forged pistons,yes, they are better than cast units, but I origionaly rebuilt my engine bone stock almost 10 years ago, & used cheap, cast Badger stock style replacement (.040),& stock rods. I`ve put over 60,000 miles on this engine, and must have 1,000 1/4 mile dragstrip runs on it. It still doesn`t burn any oil, nor does it have any piston slap, so for a mild engine, the cast pistons work fine.

------------------
78 Fairmont 428 4 speed [email protected]
80 Fairmont 302 5 speed [email protected]
85 Mustang NHRA Stocker under construction, 302 5 speed

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 07-25-2002 02:48 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
Thanks Ice,
I know its not a Mustang, but its so cool. Thanks everyone. I will hopefully driving the 69 around this weekend. Im not sure what kind of pistons I have. The engine is 0.030 over, so they are not original.

The heads I got were 69 351w and look good and have new seats installed.
Thanks Everyone.

------------------
Dustin C

56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger

[This message has been edited by Hell_Fish (edited 07-25-2002).]

IP: Logged

Gearhead
Gearhead

Posts: 2177
From: Brisbane, Australia
Registered: Mar 2000

posted 07-25-2002 03:37 PM     Click Here to See the Profile for Gearhead   Click Here to Email Gearhead     Edit/Delete Message   Reply w/Quote
Sounds just like my combo Rory. That's excellent! I did a stock rebuild, took the block 0.040 over with the cast flat tops. Glad to hear that this type of combo can stand some abuse! The stock heads are definitely my bottleneck now. I'll see about getting those C9 1969 heads in the fall, do some port work on them and get them on the engine for next spring.

I'm going to have to get this car to the track sometime and see how well it actually runs. It sure feels fast to me... but then I guess it would after dumping the stock 2-bbl carb/intake, single exhaust, stock cam and 3.08 gears for my new set up ( https://mustangsandmore.com/ubb/Forum3/HTML/000646.html ).

------------------
Cheers,
Ian
M&M Member #395
-------------------
'79 Mustang Indy 500 Pace Car
Ian's Pace Car Website
Vancouver Island Mustang Association Website
Indy Pace Car Registry of Mustangs Official Website

"A friend will bail you out of jail after you do something stupid... a real friend will be sitting beside you saying 'That was SO COOL!!'".

IP: Logged

fastcomet289
Gearhead

Posts: 140
From: ventura ca
Registered: Feb 2002

posted 07-25-2002 10:08 PM     Click Here to See the Profile for fastcomet289   Click Here to Email fastcomet289     Edit/Delete Message   Reply w/Quote
will the 351 heads also fit on a 289?

------------------
1970 mach1 351c
1965 comet 289

IP: Logged

Rory McNeil
Gearhead

Posts: 1615
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 07-26-2002 01:25 AM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
Yup, but you WILL lose quite a bit of compression, unless you have domed pistons.

------------------
78 Fairmont 428 4 speed [email protected]
80 Fairmont 302 5 speed [email protected]
85 Mustang NHRA Stocker under construction, 302 5 speed

IP: Logged

67mike
Gearhead

Posts: 166
From: Arab,AL
Registered: Mar 2001

posted 07-26-2002 10:16 AM     Click Here to See the Profile for 67mike   Click Here to Email 67mike     Edit/Delete Message   Reply w/Quote
If I go to the junkyard for heads, What do I need to look for to go about using 351 heads for this swap? Head type, years, codes. Mike

IP: Logged

Rory McNeil
Gearhead

Posts: 1615
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 07-26-2002 12:27 PM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
If the heads are on the engine still, you can`t tell the year or casting date, as these numbers are on the bottom (head gasket side) Some clues to identify the earlier heads, is they have 16 intake manifold bolts instead of the 12 used on the 289-302,& later 351W heads. Also, the early heads take the larger 13/16" spark plugs instead of the 5/8" plugs. If the intake is off, the coolant passages are "L" shaped, rather than the square or rectangular shape. Sometime in the mid-late 70`s, the 302 & 351W heads were identical, other than the larger head bolt holes, as the 289-302 has 7/16" head bolts, while the 351W uses 1/2". The most desireable 69-70 castings will have the C9 or D0 prefix on the casting #. I have also been told that all the 351W casting until 1975 were the same, but I can`t confirm or deny that. These heads will also use the cast iron "rail" rockers, with the "bottleneck" (non adjustable) studs.When at the wrecking yard, be observant! The heads I have on my car (C9`s) were found on a 77 Granada with a 302, the only way I knew they were 351W heads was because somebody earlier on had bought the aftermarket alum. intake, so the "L" shaped coolant passages were readily visable. I still didn`t know that they were the early castings at that time, but considering someone went to the trouble of doing the swap, I figured it was worth pulling 1 head to check. Got lucky! Paid $40.00 for the pair as cores, The valves were all bad, also needed guides, & I had hardened exhaust seats installed. With the huge selection of Motorsport & aftermarket heads available for the SB Ford, the OE Windsor heads are not as much in demand anymore, but for those on a tight budget, they are still a worthwhile swap.

------------------
78 Fairmont 428 4 speed [email protected]
80 Fairmont 302 5 speed [email protected]
85 Mustang NHRA Stocker under construction, 302 5 speed

IP: Logged

67mike
Gearhead

Posts: 166
From: Arab,AL
Registered: Mar 2001

posted 07-27-2002 02:48 PM     Click Here to See the Profile for 67mike   Click Here to Email 67mike     Edit/Delete Message   Reply w/Quote
I hate to sound like an idiot, but do the 351's have 351 stamped under the valve cover? Just checking. Mike

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 07-29-2002 01:59 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
I bought the spacers because I couldn't find the stepped bolts. They work nice.

------------------
Dustin C
[IMG]http://pages.moparpages.com/duster/sigs/hell_fish.gif[/IMG]
56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger

IP: Logged

itzli
Journeyman

Posts: 5
From: longview, Wa, Usa
Registered: Feb 2005

posted 02-08-2005 11:02 PM     Click Here to See the Profile for itzli   Click Here to Email itzli     Edit/Delete Message   Reply w/Quote
do you use a 302 intake or a 351? or does it natter? i'm wanting to try this too, already bought the heads

IP: Logged

Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 02-08-2005 11:18 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Welcome to M&M !

289-302 intake is used.

------------------
Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28

The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com

[This message has been edited by Moneymaker (edited 02-08-2005).]

IP: Logged

68 S-code GT
Gearhead

Posts: 2968
From: Sayreville, NJ, US
Registered: Mar 2000

posted 02-09-2005 08:22 AM     Click Here to See the Profile for 68 S-code GT   Click Here to Email 68 S-code GT     Edit/Delete Message   Reply w/Quote
Anybody know what happened to Dustin?

------------------
Ed S.

68 S-code FB GT 4spd(now C6)/3.25 PS PDB
68 J-code(now 289) Cp Sprint"B" C4/3L00-9" PDB PS AC Bla-Bla-Bla
99 F150 XLT Ext/cab, 4X4, 5.4L, 3L55

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 02-09-2005 08:33 AM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
Im still around.

IP: Logged

68 S-code GT
Gearhead

Posts: 2968
From: Sayreville, NJ, US
Registered: Mar 2000

posted 02-09-2005 05:31 PM     Click Here to See the Profile for 68 S-code GT   Click Here to Email 68 S-code GT     Edit/Delete Message   Reply w/Quote

IP: Logged

wvcat
Gearhead

Posts: 298
From: New Cumberland,WV
Registered: May 2001

posted 02-09-2005 09:44 PM     Click Here to See the Profile for wvcat   Click Here to Email wvcat     Edit/Delete Message   Reply w/Quote
I just put together a 302 with 69 windsor heads. The early heads also have 4 extra intake bolt holes that are in the water passage. I pluged the holes just to be sure no water got into the wrong places.
John

------------------

Thanks
John
(wvcat)
http://www.geocities.com/wvxr7cougar/wvcat_01.html?989286238390
http://mysite.verizon.net/vzeo7ta1/
Thanks
John
(wvcat)
http://www.geocities.com/wvxr7cougar/wvcat_01.html?989286238390
70[/URL]
[URL=http://mysite.verizon.net/vzeo7ta1/XR7[/URL]Restomod...wvcat
66 coupe project...she needs a name!!!

IP: Logged

itzli
Journeyman

Posts: 5
From: longview, Wa, Usa
Registered: Feb 2005

posted 02-10-2005 11:47 AM     Click Here to See the Profile for itzli   Click Here to Email itzli     Edit/Delete Message   Reply w/Quote
those shoulder bolts, i went to the local parts store, and got a quote of 169$ for a set. is that right? or should i keep looking

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 02-10-2005 12:17 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
I want to say that the spacers I used cost over $60, so with that in mind, that price sounds about right.

------------------
Dustin C
"The Mopar Guy!"
CRC Motorsports
56 F-100
Mech. for wifes 69 Mustang coupe 302 with 69 351W heads and Offy 4bbl intake, C4, Granada disc brakes, Mach 1 springs, Boss 302 sway bar, 8" open
65 Plymouth Barracuda

IP: Logged

68 S-code GT
Gearhead

Posts: 2968
From: Sayreville, NJ, US
Registered: Mar 2000

posted 02-10-2005 01:15 PM     Click Here to See the Profile for 68 S-code GT   Click Here to Email 68 S-code GT     Edit/Delete Message   Reply w/Quote
Ford did have M-6065-C289 for about $50.

Jegs has ARPs for $110
http://www.jegs.com//cgi-bin/ncommerce3/ProductDisplay?prrfnbr=8760&prmenbr=361
Found these for $92
http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=168498&prmenbr=361

These bushings might also work with the 302 bolts. $46
http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=17303&prmenbr=361


Summit has them for the same $110
http://store.summitracing.com/default.asp?target=esearch.asp&N=100& Ntk=PartSearch&Ntt=ARP-254-3708&x=12&y=9

[This message has been edited by 68 S-code GT (edited 02-10-2005).]

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 02-10-2005 01:42 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
These bushings might also work with the 302 bolts. $46
http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=17303&prmenbr=361

Thats what I used.

------------------
Dustin C
"The Mopar Guy!"
CRC Motorsports
56 F-100
Mech. for wifes 69 Mustang coupe 302 with 69 351W heads and Offy 4bbl intake, C4, Granada disc brakes, Mach 1 springs, Boss 302 sway bar, 8" open
65 Plymouth Barracuda

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 02-10-2005 01:44 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
Ed, none of the bolts you listed are correct. The correct bolts are wider near the top ans smaller at the threaded end.

------------------
Dustin C
"The Mopar Guy!"
CRC Motorsports
56 F-100
Mech. for wifes 69 Mustang coupe 302 with 69 351W heads and Offy 4bbl intake, C4, Granada disc brakes, Mach 1 springs, Boss 302 sway bar, 8" open
65 Plymouth Barracuda

IP: Logged

itzli
Journeyman

Posts: 5
From: longview, Wa, Usa
Registered: Feb 2005

posted 02-17-2005 08:42 PM     Click Here to See the Profile for itzli   Click Here to Email itzli     Edit/Delete Message   Reply w/Quote
is it really just a bolt on and rdy to go? cause i've read many other forums where they talk about having to shave down your intake or shaving this, that.

IP: Logged

whiteknight289
Gearhead

Posts: 1391
From: Wheaton, IL, USA
Registered: Mar 2004

posted 02-17-2005 10:23 PM     Click Here to See the Profile for whiteknight289   Click Here to Email whiteknight289     Edit/Delete Message   Reply w/Quote
No intake mods necessary. The heads are dimensionally the same, using the same intake manifold and the same exhaust. Where they are different is when you have them on a 351w block, because the block is wider it requires a wider intake, and it rotates the exhaust outward slightly.
But on a 289 or 302, use the same intake and exhaust as you would now.
Scott

IP: Logged

68 S-code GT
Gearhead

Posts: 2968
From: Sayreville, NJ, US
Registered: Mar 2000

posted 03-07-2005 10:26 AM     Click Here to See the Profile for 68 S-code GT   Click Here to Email 68 S-code GT     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Hell_Fish:
Ed, none of the bolts you listed are correct. The correct bolts are wider near the top ans smaller at the threaded end.


They say that the bolts are stepped so you would think that the threads were the smaller 302 and the end at the bolt head was larger for the 351 head.

------------------
Ed S.

68 S-code FB GT 4spd(now C6)/3.25 PS PDB
68 J-code(now 289) Cp Sprint"B" C4/3L00-9" PDB PS AC Bla-Bla-Bla
99 F150 XLT Ext/cab, 4X4, 5.4L, 3L55

IP: Logged

BornInAFord
Gearhead

Posts: 533
From: Bend, OR, USA
Registered: Dec 2002

posted 03-07-2005 11:15 AM     Click Here to See the Profile for BornInAFord     Edit/Delete Message   Reply w/Quote
Would the step-down washers and stock 302 head bolts be cheaper than the stepdown bolts? They use them a lot on aluminum heads which are all set up for 351W boltholes. Jegs, Summit and others carry them from Edelbrock.
Daniel

IP: Logged

Rory McNeil
Gearhead

Posts: 1615
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 03-07-2005 12:45 PM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
The Mr. Gasket head bolt washers I used were simple, flat hardened washers, for a SB Chev. Thay cost about $10.00 if I remember correctly. Never had a problem. Don`t forget, the heads are located to the block with the dowels, I wouldn`t worry too much about the washers being stepped.

------------------
78 Fairmont 428 4 speed [email protected]
80 Fairmont 302 5 speed [email protected]
85 Mustang NHRA M/Stock 302 5speed. [email protected]
59 Meteor (Canadian Ford) 2 dr sedan 332, auto
74 F350 ramp truck 390 4spd

IP: Logged

Hell_Fish
Gearhead

Posts: 906
From: Austin, TX.
Registered: May 2002

posted 03-07-2005 03:26 PM     Click Here to See the Profile for Hell_Fish   Click Here to Email Hell_Fish     Edit/Delete Message   Reply w/Quote
The dowels are there for alignment, not to hold in place. Don't skimp. As for whats cheaper? No idea, the inserts is what was on hand at the store I went to, so I went with that.

------------------
Dustin C
"The Mopar Guy!"
CRC Motorsports
56 F-100
Mech. for wifes 69 Mustang coupe 302 with 69 351W heads and Offy 4bbl intake, C4, Granada disc brakes, Mach 1 springs, Boss 302 sway bar, 8" open
65 Plymouth Barracuda

IP: Logged

All times are ET (US)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply
Hop to:

Contact Us | Mustangsandmore Front Page

Copyright 2005, Steve LaRiviere. All Rights Reserved.


Ultimate Bulletin Board 5.47d

Amazon Honor System Click Here to Pay Learn More

[Build a free Mustangsandmore.ws Home Page!]

[Posting Pictures]

[About M&M][Acronyms][Calendar][Chat][Classifieds] [Members' Pics]

[M&M Conventions] [M&M Mug Shots]

[ Mustangsandmore.com Bookstore] [ Smokin' Fords] [Tech Articles]