302 vs 351

[ttop88]

I have both a 302 (with low miles) and a 351w (that need gone through). I am curious what the power difference would be with the same parts used on both engines(yes, I know the intakes won't swap)

The top end will consist of:

Unported track heats
1.6 tfs rockers
Victor jr. or stealth intake (Have both)
and a 650cfm or 750cfm proform hp Race series carb
And this cam:
http://i201.photobucket.com/albums/aa207/ttop88/Camcardn-51hr.jpg

If the hp and tq numbers are big enough difference I will do the 351. I have never ran a Windsor and honestly don't know how big a difference it would make. The only accessory on the car is the Alt. My estimate for the 302 with this combo is 350hp and tq. I would assume the 351 would make more torque, but how much more? Also, how much difference would there be between the two intakes?

[Jrcmutang]

If you can swing it go with a windsor, you can run a lot more power through a stock windsor block and lots of tourqe, I have a windosr in my car and ill never go back to a 302. The parts are a little more, but worth the fun in my opinion.

[k062693w]

There is no Replacement for Displacement !!!!!!!!!!!

[Blackpony]

I had considered the 351 conversion but i have too much money in my 302 just to swap it out and rebuild another motor

[ttop88]

But what would the power difference be? Same cam, Victor intake, 750 carb how much power and torque would it make?

[Jrcmutang]

no really sure, with decent heads and an intake and cam, my 351 made 420 horse and 420 tq, i have a trick flow intake and rpm heads that kinda choke the motor and a extreme energy 274 cam, i love my windsor. I think its worth the swap if you dont have too much money in the 302

[Jrcmutang]

i forgot to mention that was with a duel plane intake and a 750 dp at the crank, havent dynoed since i went to FI

[2-Tone]

If you have future plans for some sort of power adder I would go with the Windsor. If you are going to leave it N/A I think the 302 will serve you well.

[Rick93coupe]

351 for block strength and added torque. It would benefit from porting the heads, but they would work as cast. The cam is pretty aggressive for a 302, so it would be tamed down a bunch on the windsor, but I bet it would make good power.
.02

[chad393na]

Yea, the cam would be pretty radical in the 302 but mild in the windsor. Is the cam a hyd. roller? If so, take into account that you will have to run the high dollar link bar roller lifters. All in all I would NEVER go back to a 302 setup, unless of course it was a stroker dart block setup.

[Timido]

Amen to that
All in all I would NEVER go back to a 302 setup, unless of course it was a stroker dart block setup.