4x4dave

more power

Carcrazygts2

Only reason I went E85 as I dont drive the truck everyday so it was negliable in cost for myself. You 42lb injectors will not support the power goals you are trying to achieve. Your going to need to be in the 55-60lb range at a minimum.

Jbrew

Man , are you guys ever going to get those 4V's done ? Just change your priority's around a bit.

ibd2328

iTrader: (2)

Our stock block can hold well above what you are doing man.

fordmotorsport

The block will but the cranks rods and pistons won't

ibd2328

iTrader: (2)

Replace rods and pistons. I think it's pointless to change cranks if you aren't changing or building up the tranny.

fordmotorsport

Well that's the thing. The 02/03 model f150's got 8 bolt cranks, the rest of us got the 6 bolt which aren't able to hold the power of the 8 bolt. I think it's more of a security thing. 8 bolts are cheap insurance.

fordmotorsport

Yeah I was thinking 60 pounders to give him room to grow.

ibd2328

iTrader: (2)

What year is your truck? Mine has the factory forged crank (03 with PI heads) with 8bolts. I forgot Ford kept changing things from year to year on these things. By my reading its about impossible to tell unless you look at it or ping it with a hammer or look at the parting lines.

MyFX4Project

Are you going with a 4 bolt main?