pastfast125

I was just readin an article in muscle mustangs and fast fords. They were doing a comparison in times between a c4 and t5. On they're test car, I think it was a 91 lx hatchback or somethin, it had a 302 with 1971 351w heads. I didn't know you could run those. Is There a benefit of running stock 351w heads over stock 302 heads? The 351w heads I can get are free, but they're 1991... Any increase in flow or anything to switch those? Does everything bolt up?Thanks.

grumpyphillips

I don't know about flow numbers but you should be able to bolt 351 heads up to a 302 without any problems.

pastfast125

anybody know if there would be benefits?

fordstroker

The C9-D0 351 head is comparable to a gt40 head, the later heads like you have are useless.

90mustang5.8

the 351w heads have bigger valves.........

dthompson67

yes the 351w heads bolt up just fine. actually my friend is building a 347 using 351w heads. he is porting out the hump in the exhaust ports to allow more airflow.

93whitelx

well his heads are junk now , never port your heads, unless he has a shop do it

pastfast125

ic. So would there really be any benefit to swapping out the later yr 351 heads, and maybe doin what he said with just cleanin up the ports a lil bit?

pastfast125

woops, you beat me... n/m

90mustang5.8

wtf?