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Author
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Topic: 302 build questions
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fastbigblockford
Journeyman Posts: 88
From: Elizabeth, WV USA
Registered: Dec 2004
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posted 01-03-2005 04:52 AM
   
ive asked this on another board, but ill ask here because i want all the input possible. im building a 302 for my 73 stang, here is what i have:
D4DE block
2A crank
C8OE rods
D0OE heads
gonna bore the block .030 over and add some KB116s, and turn the crank 10/10 just to clean up afew knicks.
what im looking for is a cam and intake combo, and maybe a carb suggestion. ive already decided on 4.11 gears, and a C4 auto.
the heads will have some mild port work done, and just cleaned up, new guides and a valve job. i will still be running the 5/16ths studs so i know i have to keep the cam within reason. also will be running a stock or slightly over stock stall converter, so there is another limitation 
looking for all the advice i can get.
thanks abunch
Dan------------------
73 mustang coupe
'77 302 .030 over
D0OE 302 heads
work in progress
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N266fords
Gearhead Posts: 1652
From: Sierra Vista ,Az USA
Registered: Apr 2003
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posted 01-03-2005 09:02 AM
What might help them to answer you is to know what you intend to do with this engine. MOSTLY STREET WITH LIGHT TRACK USEAGE, OR MOSTLY TRACK USE WITH LIGHT STREET DRIVING. This kind of info is really inportant when selecting which cam and carb also will be to select the torque converter to match your gears compression ratio and cam selection on the above situation.
Hope this helps.
Bruce Williams
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fastbigblockford
Journeyman Posts: 88
From: Elizabeth, WV USA
Registered: Dec 2004
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posted 01-03-2005 04:03 PM
yeah i forgot to mention that, the car will be mostly a street cruiser as the closest track is still an hour or so drive. it will see the track, but not often.
thanks for the input
Dan
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n2oMike
Gearhead Posts: 2694
From: Spencer, WV
Registered: Jan 2001
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posted 01-03-2005 04:50 PM
Performer RPM is your best 'bang for the buck' intake when using stock head castings.If you're sticking with the stock 5/16" undercut rocker studs and stock rockers, something like a Comp Cams 268H High Energy cam might be about right. It measures 218 @ 0.050". Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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69 Sportsroof
Gearhead Posts: 2124
From: Valley, Alabama, USA
Registered: Mar 2002
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posted 01-03-2005 05:46 PM
I've got the Comp Cams magnum 270H in mine with E'brock performer (need rpm) and BG 625 road demon jr. The mufflers are some straight through's that I put on to break the cam in.You can hear it at this link ---> My 302
Don't mind the smoke. That was fixed when I put the correct baffles in my valve covers. 
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n2oMike
Gearhead Posts: 2694
From: Spencer, WV
Registered: Jan 2001
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posted 01-03-2005 09:39 PM
quote:
Originally posted by fastbigblockford:
gonna bore the block .030 over and add some KB116s
Just noticed this. Aren't those the 0.200" domed pistons? You do NOT want those for a car that spends most of its time on the street. Too much compression for pump gas.... even if you detune it to where it runs like crap. Run a set of flat tops. Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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fastbigblockford
Journeyman Posts: 88
From: Elizabeth, WV USA
Registered: Dec 2004
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posted 01-03-2005 11:05 PM
the reason i was going to run the 116s over the 115s is that i have one of the 302 blocks with the odd deck height(im told something like .023" different)thats the only reason i was gonna run em, im worried that my compression will be way low, and i really dont want that, unless i go to nitrous, but that gets alittle too expensive for what im after.
is there some way i can check to see if i have the taller deck block?? im probably worrying about nothing, but im worrying none the less.
thanks
Dan
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n2oMike
Gearhead Posts: 2694
From: Spencer, WV
Registered: Jan 2001
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posted 01-04-2005 06:49 AM
For the size cam you are going to use, compression a tad on the low side isn't really a bad thing... especially on a driver with today's fuel prices.Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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fastbigblockford
Journeyman Posts: 88
From: Elizabeth, WV USA
Registered: Dec 2004
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posted 01-05-2005 12:20 AM
i dunno mike, im just worried this motor is gonna be lame, and ill get discouraged and sell the car or something. where could i make changes im my combo to make more power? i think im putting too much emphasis on the street car part, im starting to wonder if it would be worth it to compromise that part to be more satisfied in how the car performs. i mean lets face it, what does a 73 coupe weigh, 3600 or so on a good day?? i just dont think a 200hp mill will be enough
as always i look to you for advice
Dan
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n2oMike
Gearhead Posts: 2694
From: Spencer, WV
Registered: Jan 2001
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posted 01-05-2005 12:31 AM
Dan, the studs and rockers are going to limit the cam choice. You may have to grind the stud slots in the rockers the way it is if they aren't long enough.A smaller cam will provide more torque, which is exactly what that heavy car needs... especially with a tight converter. Smaller cams do not have to rely on higher compression ratios to build good cylinder pressure. The reason larger cams need more compression, is they bleed a lot of the compression out of the cylinder with their late intake closing events. Small cams build plenty good cylinder pressure with lower compression ratios. Port the heads and build a good COMBINATION. High dome pistons are not a magic bullet. They will just be a Pain in the butt with your engine. Trust me. Install a Performer RPM and a 650 Double Pumper or 750 Edelbrock and be happy! Keep the cam duration around 218 degrees for those mostly stock heads on your heavy car. It will run just fine.  Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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