SBF Heads

[Mark O'Neal]

Timing is utterly dependent on cylinder pressure.

Good luck.

 

[KwiknFast]

Shows the chamber differences between E7TE, GT40 and GT40P heads. Mostly the spark plug is moved closer to the center of the chamber.

 

[Yoyodyne]

How do any of these compare to early 351W heads?

 

[Lead-Farmer]

How do any of these compare to early 351W heads?

I would rather run GT40s if it was a 302 to 331, but there's tons of heads now that are 5x better than anything Ford put out in the 60s.

 

[BOSS#1540]

How do any of these compare to early 351W heads?

I believe the 69/70 head was the only decent one windsor had. Brother got into the 12's with them on a 306 then switched to afr's. Iirc it went from a 12.8 to 12.6