jtmustang

hey im just about to lay my crank in and finally put my motor together i just need someone to point me out to a good trustworthy site for torque specs,etc.. and especially bearing clearances and what not help

capri debris

My first suggestion is to check out my thread... the engine build up starts on page 8.

https://mustangforums.com/m_3538994/tm.htm

Main cap torque with bolts: 80-90 ft. lbs.
Main cap torque with ARP studs and ARP moly lube: 70 ft. lbs.
Rod cap torque with stock bolts: 30-36 ft. lbs.
Rod cap torque with ARP bolts and ARP moly lube: 28 ft. lbs.
Mainbearing clearance with plastigauge: .0005 - .0015, but anything less than .002 should be OK.
Rod bearing clearance with plastigauge: .0008 - .0026

Hope that helps.

my77stang

once you torque the crank down take a hammer and smack the counterweights a couple times, then smack the snout to knock the crank back into the block and smack the back of the crank (or the back of a counterweight) forward. this ensures the bearings are seated correcty.

i know it sounds weird, but every engine builder i have known does this everytime they built any motor - and i've personally seen hundreds of motors being assembled