westrides

im trying to put my engine back together i need the torque specs for the heads and intake upper and lower for my 88 5.0
thanks

roundman

from my '88 shop manual the specs are: cylinder heads - torque in two steps, 1st step 55-65 ft-lbs, 2nd step 65-72 ft-lbs.
intake manifold to cylinder head bolts - 23-25 ft-lbs. with a note to re-torque with the engine hot
upper intake manifold to lower- 12-18 ft-lbs.

westrides

thanks roundman can i put the push rods in at the same time as the head go on witout loosing off the rockers

roundman

NO, don't even try doing this!!! remove the rockers completely and install the heads and torque them down to specs using new head bolts as the factory bolts are "torque to yield" bolts which are only good for one use. then install the pushrods and the rockers and torque the rockers to spec and then install the lower intake.

westrides

i was told that 92 and up i cant use the original bolts but mine i could

roundman

You might be right as I've looked back in the shop manual and it doesn't say anything about not re-using the head bolts for the '88 model year 5.0 but I know I've read that stuff about torque to yield bolts for so long I thought it applied to all 5.0's, not just the newer ones.

westrides

What do you set the rocker arms at when you put them back on?

roundman

18-25 ft-lbs.

westrides

alright thanks

88PatrolCar

Tourqe to yeild bolts were used on fords aluminum head engines. The cast iron head engines used re-usable headbolts.