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Author
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Topic: windsor jr or windsor?best head?
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smblk t-bolt
Journeyman Posts: 67
From: port alberni BC Canada
Registered: Apr 2002
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posted 08-19-2002 08:23 PM
   
hi...just finnished wailing on the fairlane in port alberni...ran my best time of 13.8, now I need more.I will be building a 351 windsor for next year and I,d like some head advice.Right now I have slightly ported 69 stock heads.Which world product is better.I realize it depends how crazy you want to go but at what point does the larger head take over from the jr?or does it?is the jr an all around better piece.the application is mostly street FOR NOW, with some late night beatings and the odd visit to the track.how wild do you have to be to take advantage of the larger ports and valves in the larger head?I do want to run fast(12's would be nice)and steetability is only a minor concern.Thanx for any advice, ron 64 fairlane 289
lots of fiberglass
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RADRIDE
Gearhead Posts: 240
From: Va.Beach, Va.
Registered: Aug 2002
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posted 08-19-2002 09:23 PM
Go big if drivability is no concern and you plan on bigger and better. Heads are expensive and you will never sell used ones for what they are worth to move up.
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steve'66
Gearhead Posts: 6522
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 08-19-2002 10:57 PM
For a 351w definately run the Windsors w/ the 2.02 intake valves. A Comp 282S cam will compliment it well, plus a Edel rpm intake and a 750 Holley and around 10-1 compression and you're lookin at solid 12s.  SteveW
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stang106
Gearhead Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001
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posted 08-20-2002 03:00 AM
Ron,
If I was to build a 351W again I would try a long rod with 302 pistons. Apparently they produce more horsepower and are cheaper than a stroker. I'm sure someone here can comment more about which parts to use. Maybe I'll build one so I can keep up to you!
Dave
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smblk t-bolt
Journeyman Posts: 67
From: port alberni BC Canada
Registered: Apr 2002
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posted 08-20-2002 03:14 AM
hey, your getting a bit greedy arent you?your already faster than me...its my turn to speed up!did you notice the drag numbers...200 cars of which about 60 were street class..obviously a demand for that class for next time!64 fairlane
lots of fiberglass
even more bondo!
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stang106
Gearhead Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001
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posted 08-20-2002 04:24 AM
Ron,
I thought that it was kind of odd that of the tons of musclecars here only about 60 were at the race. I tend to think there was a failure of communication of the race committee to the street car owners of what exactly 'racing' and 'race cars' is. I talked to guy today who has a cool '68 Camaro who thought he would be embarrased to go because he didn't know what to do, how to read the lights, how to tune his car, he didn't know the difference between heads up and brackets. That's the kind of person who should be out there in a controlled environment learning with the rest of us.
The race committee needs to decide how much effort and track time to give to this segment of enthusiast and recruit them. Just my 2 cents.
Since I already have a mild street motor, now should I build a one for performance?
Dave------------------
'70 ragtop Stang
351W - 13.70 [This message has been edited by stang106 (edited 08-20-2002).]
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Moneymaker
Administrator Posts: 19704
From: Lyons, IL, USA
Registered: May 99
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posted 08-20-2002 12:00 PM
Windsors.  ------------------
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
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smblk t-bolt
Journeyman Posts: 67
From: port alberni BC Canada
Registered: Apr 2002
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posted 08-21-2002 03:11 AM
[QUOTE]Originally posted by stang106:
[B]Ron,
I thought that it was kind of odd that of the tons of musclecars here only about 60 were at the race. I tend to think there was a failure of communication of the race committee to the street car owners of what exactly 'racing' and 'race cars' is.
The race committee needs to decide how much effort and track time to give to this segment of enthusiast and recruit them. Thats what we pushed for all along...an entry level class for anyone.they did not want to give us a street class until we really pushed the issue(I talked to rhys and phil privately about it)After seeing the numbers...they cant argue about lack of intrest for next year to have a "heads-up street tire" class that runs all day.join the association and come to the meetings....i suppose this should be in a different forum-sorry but i feel strongly about getting new people involved in racing without the intimidation factor of slicked bracket cars in a newbie class. ron
ps:were your heads the same price as the larger valved heads,dave?I've seen in some catalogues they are exactly the same price.
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stang106
Gearhead Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001
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posted 08-21-2002 04:12 AM
Ron,
I do want to get more involved, right now the timing has been poor as I am just finishing a technical degree, have a four-year old daughter, wife (The War Department), dogs, and no more time.When I was buying the motor parts the 202 valves and larger runners are not compatible with high velocity flow coupled to cast iron (but ported) intake and exhaust manifolds, but the World Junior seemed a better combo. I also ported them with Vizard's ideas for that kind of application. Think it works?
If I was using a single plane and headers I would go with the larger heads. Why don't you read Vizard's book I lent you and port and valve what you have?
Dave
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'70 ragtop Stang
351W - 13.70 @104.
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smblk t-bolt
Journeyman Posts: 67
From: port alberni BC Canada
Registered: Apr 2002
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posted 08-22-2002 12:21 AM
quote:
Originally posted by stang106:
Why don't you read Vizard's book I lent you and port and valve what you have?
Dave[/B]
my heads already are ported(just on the exaust side...opened up to the header size and ported above the valve.)for the amount to put new larger valves,screw in studs and guides and guide plates i figure i might as well buy the new head.the only other question i have is:do these big(2.02)valves require me to cut deeper reliefs in the pistons?is there a piston that doesnt require deeper reliefs? thanx
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stang106
Gearhead Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001
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posted 08-22-2002 02:26 AM
Ron,
I still ported the World JR heads, they needed to be cleaned up. I didn't want to hinder low-speed velocity so I took the minimalist approach. The exaust short radius was terrible and needed widening and smoothing, the guide bosses on both intake and exhaust are huge and I narrowed them to a point on each leading edge, and brought the point up to the valve. I opened up the long radius turns on both as they were too narrow, and on the intake side I took more off the long radius outside curve side to enhance swirl. My valves are circle track stainless steel swirl polished,1.94" and 1.6" single springs. I was also careful to blend the throat into the seats, and the combustion chamber I blended to the seats and polished. Exhaust ports I polished, my cast iron manifolds I port-matched, opened up the long-radius corners, and polished. Comp Cams was told these things and they figured out the cam specs for this specific motor- was cheap. The moter pulls hard from about 4,000 and noses over at 7,000. Can break the tires loose at 2500.
My pistons have very large valve releases, when I clayed them I had 0.125" clearance. I would think that aftermarket valve releases are all meant for at least a 2.02"valve.
Dave------------------
'70 ragtop Stang
351W - 13.70 @104.
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stang106
Gearhead Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001
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posted 08-22-2002 02:29 AM
I have Roger's '69 351 heads but went with World because it was cheaper that the machining-$850- plus the costs of the valves, springs, etc. I am satisfied with my decision.
Dave------------------
'70 ragtop Stang
351W - 13.70 @104.
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bfxcomet
Gearhead Posts: 574
From: Port Alberni, B.C. , Canada
Registered: Mar 2001
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posted 08-22-2002 02:31 AM
Ron the t-bird should be together tomorrow so lets go cruise. Dave siad he's game for a drive.
Roger------------------
65 comet project
84 T-bird 302/C4 14sec street/strip
Made in CANADA built for speed
#1145
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stang106
Gearhead Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001
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posted 08-22-2002 02:35 AM
Roger pulled his (MY) heads off today and one of the metal sealing rings was cracked through. we tore the heads apart and I did a real quick port job. Blended the bowls, took the bumps out of the exhausts, and widened the intake long radius and narrowed the guides. I even widened the outside long radius more to enhance swirl. Some of the seals were broken so we had to take the valves out anyway! Lets go for a cruise soon.
Dave------------------
'70 ragtop Stang
351W - 13.70 @104.
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the last dive
Gearhead Posts: 147
From: sydney australia
Registered: Dec 2001
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posted 08-23-2002 04:45 AM
windsors are the go....only cause i got a pair
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