306 or 408
#1
306 or 408
Current set-up is a built 306 stroker with a trickflow stage 3 cam, M90 supercharger (for ****s and giggles. lol) and other goodies.
my main question is the heads on the 306 currently are Gt40 heads with a full port and polish and 1.6 rocker. i plan to build a 408 stroker and turbo the motor. was wonderin if the heads off the 306 will work. or do i have to buy some other heads?
my main question is the heads on the 306 currently are Gt40 heads with a full port and polish and 1.6 rocker. i plan to build a 408 stroker and turbo the motor. was wonderin if the heads off the 306 will work. or do i have to buy some other heads?
#4
#6
#7
#8
m90 306
#10
Wait a minute, mjr is wrong! lol j/p
GT40's already have the 1/2 inch head bolt holes. Mine came that way at least and they were never toughed before I got them. Anyway that doesn't matter because they won't work for a 408. I don't even know why ford had them on the 351 in the first place because they are barely enough for a mild 302 build until they have extensive porting done.