4A-GE Big Port Torque Specs


Torque (lbs-ft)
Camshaft timing pulley x Camshaft 34 !
Idler pulley x Cylinder block 27
Crankshaft pulley x Crankshaft 101 !
Cylinder head x Cylinder block ~65-70 (my preference using ARP bolts)
Camshaft bearing cap x Cylinder head 9
Intake manifold x Cylinder head 20
Intake manifold stay x Cylinder head 16
Intake manifold stay x Cylinder block 16
EGR pipe x Exhaust manifold 51 #
Exhaust manifold x Cylinder head 29 #
Exhaust manifold stay x Exhaust manifold 29 #
Exhaust manifold stay x Cylinder block 29 #
Main bearing cap x Cylinder block 44
Connecting rod cap x Connecting rod ~36
Flywheel x Crankshaft 54 !
NOTES: ! = I highly recommend using Loctite #242 (medium) on these fasteners so that they don't vibrate loose. I dunno about you, but losing a crankshaft pulley at redline is something I'd rather not experience.

# = I recommend using an anti-seize compound on these fasteners so that you don't have a hard time removing them later on.

With the rest of the fasteners, you really should use some sort of Moly-based assembly grease to get consistent torque readings--if you do it "dry," most of the torque you apply on it will be wasted in the friction between the fastener and its adjacent surface. ARP supplies a great assembly lube and it also comes with their stud and bolt kits. You wouldn't want to waste all of that time and effort just cuz you didn't take the time to torque things down properly, would you? Don't make me come over there and smack you! Use 'em!!!


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