Hi all, Going to do a rebuild on my 302. I'd welcome your comments on cam, manifold and head choice's and combinations. Want it still to be drivable (4 speed) but want the sweet sound of a tuned motor. Not looking for max HP but would like .......
Check out Summit, they have some nice rebuild kits that don't cost a whole lot. That's what I did, I think it cost around $350. That included all teh new gaskets, new pistons and all the small stuff. THen if you want a nice top end, they also have Edelbrock and Trick Flow top end kits that include the lower intake manifold, upper manifold, cam and heads. That'll run you at least over a $1000 starting......
Good luck, keep up posted on your decision...
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1979 Pace Car – Use to have a bunch of goodies......sold them all to buy a house. She'll be alive again.
1989 GT - DSS 331 short block, Eibach Sport line springs, Magnaflow CBE, Pypes Headers/mid pipe, Trick Flow Twisted Wedge Heads & 1.6 rockers, Cobra upper/lower, 24 lb inj......so on and so on...
I'd agree with the Summit forged piston kit. Top that off with a set of Trickflow heads decked to 58cc, and get 10:1 compression. Add a nice set of ceramic coated headers, 600cfm 4bbl carb, Wieland Stealth or Edelbrock Performer RPM intake. Move the mess around with a Lunati Voodoo cam, like a 61001.
You could also add in a windage tray and a set of lower tension rings like ford uses on the 4.6 and pick up 20hp for "free".
You could almost stand more compression than that, but the cam is a little too small to be messing around and find the ragged edge by mistake, (aka too much compression, tiny cam, oh crap, it only runs on 110) and that's one of the best cams out there. Much larger and torque and idle vacuum go out the window, and that's no good for a street car unless you want something just for fun.
My 5.0L built very similarly to what I've outlined, with low tension rings and everything, and I'm hoping for 300-310hp at the rear wheels or roughly 360hp at the flywheel. Looks like it just might make it too Can't wait for a chance to get it on a dyno
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66 coupe 5.0/T5, home-brewed power 4 wheel disc setup, 350hp+, looks like it belongs in 1968
Thanks guys, 10:1 what gas will I need? Low tension rings... tell me more. Not heard of these before. As for budget, not sure, havn't got an endles supply of money other wise the choices would be easier!! Money is limited so hence your advise....
With that cam and 10:1, it wouldn't have a problem running on plus, might even run on regular gas. As for the low tension rings, most regular ring packs end up having about 25# of tension (depending on how they are set-up), and the 'street' low tension ring packs are about 18#. They make an even lower-tension set, but those are for racing, where you don't care if it burns oil as long as you make HP
As for budget, a set of TFS heads is about $1100 US new, and they're fairly common used, the rebuild kit is $475, headers will be about $300, and intake/carb will run about $400. Cam kit is $275 IIRC.
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66 coupe 5.0/T5, home-brewed power 4 wheel disc setup, 350hp+, looks like it belongs in 1968
Just some suggestions. Spend your money on the bottom end and make sure it's ready for the build. Aftermarket heads are pricy, 351 W heads can be had at swap meets for a couple of hundred bucks and will work very well for most street engines especially the 302. While your at the swap meet pick up a used dualplane intake, again for a fraction of what a new one will run. Cam specs should be in the neighborhood of 270/280 on the duration and keep the lift under .500 and you should be good. Carb no bigger than 600 cfm. And since your rebuilding anyway consider a stroker it doesn't cost much more than a strait up re-build.
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1966 Fastback
1997 V6 Mustang
1998 GT
"Government is not the answer to our problems, government is the problem."
Thanks Preacher, I'm new to V8's. Didn't know 351w heads would go straight onto a 302. I guess the port and valve sizes would be quite a bit larger than the 302 right?? Do you know any good sites on porting 302w heads? I've done a bit of porting over the years, it helps to know where the casting gets a bit thin.
The 351W valves are bigger, as is the intake port, but the exhaust port is the standard 302W size. Most 351W heads have slightly more potential if you're a good porter. There's a guy on another board making 360hp at the wheels on a 331W with a set of ported 351W heads, so they can be made to really rock 'n roll. Be careful though, it's easy to spend too much money on the iron heads. I've got a set that came with my car, and I hope to have $500 in them by the time they're rebuilt & ported.
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66 coupe 5.0/T5, home-brewed power 4 wheel disc setup, 350hp+, looks like it belongs in 1968
302 heads...intake 1.76 port-1.94x1.04, exhaust 1.45 port 1.24x1.00 63cc chambers
If your good at head porting consider a set of 289 heads chambers are about 55 cc's which will keep the compression healthy, ports are the same as the 302.
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1966 Fastback
1997 V6 Mustang
1998 GT
"Government is not the answer to our problems, government is the problem."
Do you know any good sites on porting 302w heads? I've done a bit of porting over the years, it helps to know where the casting gets a bit thin.Thanks Dave
Google it you should turn up some good sites...I thought this one was pretty good. I'm running 351 heads on a stroker (331) I've never ported before but I think I'm going to try...luckily I've got several sets of 302 heads to practice on before I get into it for real...also have a set of early 289 heads that may find their way onto something....
302 Engine combinations 
Can't wait for a chance to get it on a dyno 
