what is the most power stock 302 every built

[Blaze86Vic]

If you ever want to replace your engine with a real ford replacement they have very powerful crate engines and one of them is the GT40 302 and a similar one the 347 (not the one we are getting). I have seen a build up of the mustang HO 5.0 FI STOCK that pushed the mustang into 10's with a new trans in muscle mustangs and fast fords magazine

None of those are within the budget. He can get a explorer motor, cam, valve springs, and headers for about 1 grand total.

[turbo2256b]

This has been discused in great detail many times. maybe with money spend on porting and other stuff GT40s are better than the P heads, but stock to stock GT40P heads are better and have better flow numbers.

I have a couple machine shops I do business with. Both actually worked with Ford at one time. One even has desplay engines in there show room many of wich I did much of the design work for. The other did tons of dyno work for ford and Ford was there backer on some forms of truck racing. The other builder doess NASCAR engines. One class could only use stock heads. They always ask if I have some 40 heads they dont want P heads. P heads are easier to find though.

P heads get some better flow numbers but dont flow air across the combustion chamber as well because of the big lump of a spark plug boss in the way. They also dont have the best flame front. Ported P heads flow the same as 40s but the 40s will kick the P heads ass because the 40s will accept larger valves the P heads wont. So if you want to up grade the heads later you got to get some 40s or E7s. Best bang for the buck is some cheep E7s have them ported with stock valves some better retainers or stock ones better springs for around 500 bucks you get better performance.

I have had all thesse heads on my flow bench stock and ported all of them. Flow numbes can look good on a bech to and not preform well on an engine because air speed is not given as a factor. Air speed realy boosts power. Bottom line my shop wold never recomend P heads. We also do not recomend aluminum heads for most 302 builds.

[Blaze86Vic]

I agree with the aluminum vs cast iron, but even in your statement, the P heads are better unmodified than 40s. I will personaly never use the heads because of the spark plug relocation. One thing I do consider (And Ford should realy start doing this as well) is how difficult it is to work on.

[Mercracer]

I will personaly never use the heads because of the spark plug relocation. One thing I do consider (And Ford should realy start doing this as well) is how difficult it is to work on.

The P heads are easy to work on with the FRPP headers. I check my pugs in between rounds when I run nitrous and I have no problems. The plug angle is no reason not to use them. P heads with the stock Explorer manifolds are easier to work on than your stock CV.

[Mercracer]

thats wat i thought so is a cobra intake better or a gt40 intake
now wat type of came should i get and rockers and springs should i get also looking to make 300hp or more and 300ftlbs of torque

Get a complete Explorer motor and use the Explorer GT40 style intake. TFS Stage 1 cam and the valve and spring kit from Central Coast Mustang.

[Mercracer]

The older mustangs (ones not using the BOSS) didn't seem to use the Windsor 302, but instead used the 289. Those went into 300hp+ arena.

The 271HP K code 289 was over rated even by gross HP standards. The LOW rise intake sucked. The 306HP Shelby 289 had a very high rise dual plane intake and the HiPo solid lifter cam with a Holley to make its rated gross power.

[Mercracer]

I have seen a build up of the mustang HO 5.0 FI STOCK that pushed the mustang into 10's with a new trans in muscle mustangs and fast fords magazine

Define STOCK and which issue you saw this in. There is NO way that a stock spec cam and E7 or even GT40 heads are going to get you into the 10's NA. The best Factory Stock FI 5.0's with GT40 heads are only in the high 11's. These engines are making over 350HP and there are big bucks into the "stock" rebuilds.

[83countrysquire]

So a 96 Explorer 5.0 i will need different headers for I thought that was 97 that spark plugs were relocated
and which is the better upper intake a cobra or gt40

[Blaze86Vic]

The P heads are easy to work on with the FRPP headers. I check my pugs in between rounds when I run nitrous and I have no problems. The plug angle is no reason not to use them. P heads with the stock Explorer manifolds are easier to work on than your stock CV.

My stock CV? Maybe you should look at the sig. I can get to every spark plug with a solid 6" extension, even the oe behind the AC compressor. And GT40 intake is better.

[turbo2256b]

I think the intake is better. But then I am just the one with a CNC machine an air flow bench over 40 years of engine buildinng experance.

[Mercracer]

My stock CV? Maybe you should look at the sig. I can get to every spark plug with a solid 6" extension, even the oe behind the AC compressor. And GT40 intake is better.

It is obviously over your head. Taking .024 seconds longer to pull a plug is not a big deal.
Regarding GT40 vs Cobra vs Explorer intakes in a mild build, "best" just doesn't matter. What matters is price and performance. The couple of ponies you may or may not give up when you are shifting at 5500-6000RPM's with a mild cam is not worth the $200 or more premium you could be paying to get a "better" intake. Too many people loosing sleep bench racing instead of saving money and building a decent combo.

[Mercracer]

So a 96 Explorer 5.0 i will need different headers for I thought that was 97 that spark plugs were relocated
and which is the better upper intake a cobra or gt40

'96 uses GT40 heads and standard manifolds. You are correct in the fact regarding GT40P heads not being used until after the 97 model year production began.
In this case, "best" isn't worth the cost difference. Just run an Explorer unless you have everything else for your combo and you really have the extra cash to burn.

[Freshmeat]

Define STOCK and which issue you saw this in. There is NO way that a stock spec cam and E7 or even GT40 heads are going to get you into the 10's NA. The best Factory Stock FI 5.0's with GT40 heads are only in the high 11's. These engines are making over 350HP and there are big bucks into the "stock" rebuilds.

Mercracer, I know what he's talking about. MM&FF took a stock Mustang engine and put a big turbo on it. That, a Lentech Strip Terminator, 3.27s, and a couple other minor mods, they ran 10.79 (I think) and were kicked off the track for lack of roll cage. The entire engine was stock including throttle body (they did ring the deck) other than the turbo, according to their claims.

[Blaze86Vic]

It is obviously over your head. Taking .024 seconds longer to pull a plug is not a big deal.

How the hell is that over my head? 40 years of experience and you still haven't learned that your OPINION is an opinion. In your OPINION, GT40 heads are better because they are almost identical flow numbers, and GT40 heads can be tweeked much more than P heads, but unmodified (someone who doesn't have a CNC machine) the P does perform better, this is fact, not an opinion.

And .024 seconds I don't give a shit about, but melting wires I do. Having to buy special headers I also care about. I won't argue any of your facts, I have not stated that any of your facts are wrong, but you stating your opinion (40 better than P because of future modifying potential) proves my fact wrong (stock P outperforms stock 40) is a load of crap. So I'm not wrong at all. And if there is one thing I have learned in my life (however short and insignificant it may be to you) is that even the most veteran person, can be wrong.

[Mercracer]

Mercracer, I know what he's talking about. MM&FF took a stock Mustang engine and put a big turbo on it. That, a Lentech Strip Terminator, 3.27s, and a couple other minor mods, they ran 10.79 (I think) and were kicked off the track for lack of roll cage. The entire engine was stock including throttle body (they did ring the deck) other than the turbo, according to their claims.

Once you add the turbo, it is no longer stock. I personally have seen those kind of times with a power adder so I am not refuting the potential with a power adder. Using that definition, I have seen a "stock" 98 Cobra motor run 9's. Nothing was touched internally to the motor.