Page 1 of 1

Piston to deck height

Posted: October 13th, 2022, 8:46 pm
by SNUBBERMIKE
Hey all,

I've browsed through the chats but am still not clear if my situation is correct. I'm running a 3727 crank in an '01 block with what I assumed were stock 4.0L rods. Is this normal to be around 1/4" off piston to deck height at TDC?

Re: Piston to deck height

Posted: October 15th, 2022, 6:05 pm
by mpgMike
Absolutely not! You shouldn't be more than -0.035" or so at the most. Looks like you either got pistons spec'd for the wrong rods, or the wrong rods for the pistons. What a shame!

Re: Piston to deck height

Posted: October 16th, 2022, 11:35 pm
by Cheromaniac
SNUBBERMIKE wrote: October 13th, 2022, 8:46 pm Hey all,

I've browsed through the chats but am still not clear if my situation is correct. I'm running a 3727 crank in an '01 block with what I assumed were stock 4.0L rods. Is this normal to be around 1/4" off piston to deck height at TDC?
It sounds like you have the 1/4" shorter 4.2L connecting rods by mistake.