View Full Version : whats the torque spects on the intake


lonewolf350
02-04-2006, 12:41:06 AM
im swaping my intake can any one tell me the torque spects and order ty

lonewolf350
02-04-2006, 12:41:49 AM
oh yeah the engine is a 350

BluEyes
02-04-2006, 10:08:46 AM
Chiltons says 30 lb*ft on the bolts.
The pattern starts with the center pair of bolts on each side - do the rear one of that pair, then the rear one of that pair on the other side. Next the front two of the center pairs, and keep working in a spiral pattern outwards. Hope that makes sense.
I also usually do it in two stages just to make sure everything is torqued evenly and is flat - one pass at 15 lb*ft, then a second at 30.

lonewolf350
02-04-2006, 03:04:49 PM
cool i thought it was somthing like that but wasent sure ty

badazz81z28
02-04-2006, 05:25:56 PM
Hey, I thought I hear sometime in the past you torque the aftermarket aluminum intakes less than the factory cast because the pressure could crack it??

lonewolf350
02-05-2006, 05:34:39 PM
could someone check this i am putting on an aftermarket one like a performer type

1978LT
02-05-2006, 06:07:52 PM
Intake doesn't matter....if it's an SBC then the torque specs are 30 lbs./ft.

Torque in 2 or 3 stages, then check every week cause heat/cold cycles will relax the gasket.

lonewolf350
02-06-2006, 12:24:42 AM
ok then

ProBeast
02-06-2006, 10:25:20 AM
What about the 4 center bolts? How do you meassure their torque?
It's near impossible to get to them with anything else than a standard forkwrench.
I recently installed a Edelbrock Performer, but I tightened the bolts to the point where they felt tight, but not overlytight. Offcourse I did tighten them in the order they should be, starting with the center ones.