351 heads on a 302

[venom97]

I got a set of 351 heads given to me and was wondereing if it would be worth swapping for the stock e7te heads. if so i was going to have them ported and cleaned up. the motor has a performer intake and a e-303 cam but for now has a stock lower end with bolt ons.

 

[I_AM_CANADIAN]

The only heads worth doing the swap would be the 69/70 windsow heads. They have some pretty decent flow numbers. After that, the smog era kicked in and all performance was lost.

 

[STANGateURlilSS]

what casting number heads are they? depending on the year of the vechile they came off of.. they might even be e7te heads..

 

[86bluecobra]

the reason you want the 69/70 heads is because they are closed chamber so they dont have a huge cc. plus those 2 years were the hieght of muscle car performance.

 

[69Rcode_Mach1]

I agree you need those heads, look at the casting numbers and tell me what they read. They should either be D0OE or C9AE cast into them, otherwise you got yourself some nice new boat anchors.

 

[Hissing Cobra]

Correct on the '69-'70 351W heads. My brother runs 12.40's with a pair that he reworked (ported/polished/larger 1.94 Chevy valves.) All other's aren't really worth it.

 

[WldstrawbryLX]

Dont want to hijack...but what about some 69 heads?? Would they flow good too?? I have a set in storage.

 

[Camman]

Dont want to hijack...but what about some 69 heads?? Would they flow good too?? I have a set in storage.

the reason you want the 69/70 heads is because they are closed chamber so they dont have a huge cc. plus those 2 years were the hieght of muscle car performance.

 

[69Rcode_Mach1]

Dont want to hijack...but what about some 69 heads?? Would they flow good too?? I have a set in storage.

Yes they are some of the best flowing factory heads for the small blocks. Besides cleveland heads.