Thread: Torque on Edelbrock Heads
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Old 02-12-2007, 08:38 PM
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Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
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For a REAL small block (289/302) I have seen it in print (and I subscribe to) torquing the inner (long) head studs/bolts an addition 10# to prevent the intake manifold installation from lifting the head and reducing the clamping pressure on the head gasket. The final 10# being done after the "normal" correct torque is reached on all the fasteners.
Also ARP offers a set of reduced shank diameter studs for the 289/302 that maintain the clamping load on the outer (short) fasteners and keep the stretch in the fastener that is required to maintain clamping load. Read the tech info on ARP's website. Important stuff.
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