SB build for street strip car.

cast mopar crank 4 inch
eagle I beams
keith black 107 flattops
untouched eddy heads
rpm air gap intake
750 holley dp
comp big m thumper cam hyd roller
comp retrofit lifters


just built one for $4100
It made 470 hp and 530ft
in a 65 dart it runs 11.6
with a 275/60/15 bf drag radial and 3.91 gears
it is a ******* beast and super streetable

KB107 pistons will not work with a 4 inch stroke..the pistons will hit the heads...

2 + 6.123 + 1.67= 9.793....the pistons will be .200 out of the deck...

pistons for 4 inch strokers usually have compression heights of 1.45..