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Have the intake off my 426 hemi and need to know the torque specs. OEM style alum heads and a newer inline 2x4 MP alum intake. I don't want to crack those beautiful heads! Anyone have an online source for this information?

Cincylance

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The factory service manual calls for torqueing the inner four bolts to 72 inch lbs. and the outers to 48 inch pounds. I use that on both iron and aluminum heads, carb. intakes and blower manifolds with no problems in a lot of years working on Hemiroid motors I do retorque them sevearl times until they take a hard set, that's when they all stay tight and don't take anymore movement when retorquing Make sure and have flat washers under the head of the 1/4 inch bolts if your not using the original style or replacement intake bolts that have the captive washers on them

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Thanks, guys. Got it. I'll check and re-torque in a few days.

Cincylance

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They do need to be checked and retorque regularly , esecially after warming up the motor when the gaskets and bolts are new

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Thanks, guys. Got it. I'll check and re-torque in a few days.

Cincylance

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