302 horse power - Ford Mustang Forum
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post #1 of 40 (permalink) Old 06-05-2008 Thread Starter
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302 horse power

I am going back and forth on whether or not I want to keep the stock 302 or swap it out for a 351w. If I keep the 302 I am going to bore it and stroke it. How much horse power can you get out of a 302 bored 0.030 over with good cam, intake, and everything else. Looking at getting around the 400 mark at the rear wheels. Does anyone now if this is possible?
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post #2 of 40 (permalink) Old 06-05-2008
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302 Building 400 Horses

Getting 400 h.p. out of a 302 is achievable. If you bore it over .030 and run a moderate cam, you'll get about 350 h.p. Figure you port the heads a bit, and and mount a decent four-barrel on it, then you've hit around 400. Lets not forget that you can buy a 347 stroker kit for it. Then you'd be past 400 by a bit. 351W's can build 400 easy too. It's just a matter of what you like better, 302 or 351.
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post #3 of 40 (permalink) Old 06-06-2008
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400 hp at the rear wheels means 420 to 430 at the crank. You will need good after market heads, a good cam, dual plane intake, 650 cfm carb, headers and good ignition to make that kind of power from a 302.

Check online under Crate engines. Most builders will list components used to make a variety of horse power from small block fords. This will give you a good idea of the components needed to make the power you want.
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post #4 of 40 (permalink) Old 06-07-2008
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Getting 400 h.p. out of a 302 is achievable. If you bore it over .030 and run a moderate cam, you'll get about 350 h.p. Figure you port the heads a bit, and and mount a decent four-barrel on it, then you've hit around 400. Lets not forget that you can buy a 347 stroker kit for it. Then you'd be past 400 by a bit. 351W's can build 400 easy too. It's just a matter of what you like better, 302 or 351.
What do you consider a moderate cam? also what are the RISK you take by redoing the heads on a 114k engine and putting back together for a while, not quite ready to do a complete rebuild. I posted this before but got no reply. so I'm hitching a ride on this fellas thread.

"After all ......looks ARE important"

1967 Diamond Blue Convertible all original survivor
1971 Mach I: 351c,Performer intake,Holley 750,Doug Thorley headers,duals (of course)Flowmasters, Accel dist/coil, MSD brain,Isky Cam .517/ADV Duration 280@ .050 Duration 232 LC 108, FMX with shift kit, 2800 stall, 3:89 gears:hihi:
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post #5 of 40 (permalink) Old 06-07-2008 Thread Starter
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302 horse power

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Getting 400 h.p. out of a 302 is achievable. If you bore it over .030 and run a moderate cam, you'll get about 350 h.p. Figure you port the heads a bit, and and mount a decent four-barrel on it, then you've hit around 400. Lets not forget that you can buy a 347 stroker kit for it. Then you'd be past 400 by a bit. 351W's can build 400 easy too. It's just a matter of what you like better, 302 or 351.

I am looking at boring it .030 over and stroking it to 347. Also looking at Victor Jr. Heads. Looking at a 4 barrel 850 cfm carb. Not sure what type of cam would be best or what flex plate would be best? Will the stock trans be up for this power or should i look at a race ready on? Should i use a dual plane intake or single. Looking at Edelbrock intake. What type of distributor would be the best fit for the 302?
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post #6 of 40 (permalink) Old 06-08-2008
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my 302 in 66, gt 40 heads, dual plane performer, 0.30 over, mild cam, roller rockers, holley 600, msd hei ignition, hooker headers, c-4 with shift kit and 9 in rear end everything port and polished,balanced,and blueprinted 2500.00 and you get 390 at the crank and around 360 370 at the rear wheels on the dyno.
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post #7 of 40 (permalink) Old 06-09-2008
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66 ....... thats not bad ............ I just may use the same formula with my 68
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post #8 of 40 (permalink) Old 06-09-2008
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drew

850 is to much carb for a smallblock you'll spend a lot of time adjusting and adjusting (air, fuel, timing, vaccuum) ive got a 69 camaro with a 454 and went with a 850 on it ran like **** adjusted constantly finally went down to a 650 and a little timing adjustment and she ran smooth as silk, 600-650 is plenty for a 302. thats just my expereince and opinion.
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post #9 of 40 (permalink) Old 01-19-2011
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my 302 in 66, gt 40 heads, dual plane performer, 0.30 over, mild cam, roller rockers, holley 600, msd hei ignition, hooker headers, c-4 with shift kit and 9 in rear end everything port and polished,balanced,and blueprinted 2500.00 and you get 390 at the crank and around 360 370 at the rear wheels on the dyno.
Maybe you can give me some Idea what mine is.

302/0.60 over Isky racing cam (Not sure which one yet, but it is a racing setup) 11:1 aluminum pistons. Otherwise similar to your setup.

3.55 9" rear end (I have the 4.11s) C-6 with about $4000 worth of B&M parts and other. I haven't tried it yet, but supposedly, it'll run low to mid 11's in a 1/4. I do know that it can be nearly be uncontrollable if you're not careful and don't respect it as a piece of equipment.
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Maybe you can give me some Idea what mine is.

I haven't tried it yet, but supposedly, it'll run low to mid 11's in a 1/4.
Not to dampen your enthusiasm, but that ain't gonna happen!

11's or even high 12's are just not that easy to do!

I used to have a 1968 big block Corvette roadster built to the hilt, (Barely streetable) that would run high 12's with slicks! Low to mid 13's without!

I thought that I knew it all, Then I started working on a Ford!
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Not to dampen your enthusiasm, but that ain't gonna happen!

11's or even high 12's are just not that easy to do!

I used to have a 1968 big block Corvette roadster built to the hilt, (Barely streetable) that would run high 12's with slicks! Low to mid 13's without!
Not trying to be mean, but if the best you could get out of a built big block Vette roadster is high 12's with slicks, there is a serious problem with the way you had it set up.

I had a '70 Dodge Superbee with 4.11 rear end, 440 with two 600 holleys and a four speed and with slicks and turned low twelves with it. This car was only a little better than stock. My current car is a bit quicker than my old Dodge and tries to kill me at least once a day.
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this is it, to get 400 out of an N/A 302 your going to have to have heads with huge runners and valves and a devistating valve train. You will wind up changing a lot of other stuff in the process as well, torque conv, rear gears, yadda yadda.

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this is it, to get 400 out of an N/A 302 your going to have to have heads with huge runners and valves and a devistating valve train. You will wind up changing a lot of other stuff in the process as well, torque conv, rear gears, yadda yadda.
Exactly. The guy who owned it before me has ten grand in receipts just for the engine, He has another $2,000 in receipts for the engine that he hasn't found yet. That would be 1990 dollars, not 2010 dollars. Lot's of titanium parts, The only thing "Ford" in the upper part of the engine is the castings for the heads. Everything else is Chevrolet. LOTS of machining in the heads. Oversized Chevrolet valves. This was being built for all-out drag racing. Devastating valve train? Yeah, you betcha'! A guy named Rex Hutchinson (Rex Hutchinson Racing) put this engine together. Balanced, blueprinted Etc. The only thing I regret is not being the guy who had this built so I can't take any credit for it. I just bought it. I don't regret putting the nearly $20,000 in the drive train though. Only reason I was sold this car is because the guy has too many projects and he made me and my wife promise to take care of it and do something with it.
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Exactly. The guy who owned it before me has ten grand in receipts just for the engine, He has another $2,000 in receipts for the engine that he hasn't found yet. That would be 1990 dollars, not 2010 dollars. Lot's of titanium parts, The only thing "Ford" in the upper part of the engine is the castings for the heads. Everything else is Chevrolet. LOTS of machining in the heads. Oversized Chevrolet valves. This was being built for all-out drag racing. Devastating valve train? Yeah, you betcha'! A guy named Rex Hutchinson (Rex Hutchinson Racing) put this engine together. Balanced, blueprinted Etc. The only thing I regret is not being the guy who had this built so I can't take any credit for it. I just bought it. I don't regret putting the nearly $20,000 in the drive train though. Only reason I was sold this car is because the guy has too many projects and he made me and my wife promise to take care of it and do something with it.
OOOPS! I misworded, I don't regret NOT putting $20,000 in the drivetrain. The only thing I've done to it myself was a new exhaust and windshield....so far.
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I'll bite what parts are titanium?
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