Torque lbs for aluminum heads?

[Guido]

Can anyone tell me what lbs to toque aluminum heads? thank u

 

[Rockland71GTX]

Best bet is to check manufacturers recommendation.

 

[4mulas]

Probably 70 foot lbs. consult your service manual.

 

[coloradodave]

I torqued my Indy aluminum heads in 3 steps: 40ft. lbs., then 55 ft. lbs, then 70 ft. lbs. I used ARP bolts with their lube. Rechecked torque after initial break-in and cool down. No need.
I agree to check with the manufacturer of your heads for best information...

 

[fbs63]

The tightening torque is determined by the fastener material. As stated above use the suppliers spec. If stock bolts use the factory spec.