Tuesday 19 August 2014

Could you tell me the 350 chev head bolt toque settings?

Could you tell me the 350 chev head bolt toque settings?
the short answer is 65 ft-lbs of torque. now for the medium answer (you don't want my long answer): always check torque specs for the specific application (year, make, and model); always torque heads in three equal increments (so torque all bolts in sequence to 22, then 44, then 65); ALWAYS torque in the proper sequence, which is basically start at the center and work your way out in a circular pattern; and always use brand new head bolts (though I've never done this--head bolts are somewhat expensive, and i don't rebuild racing engines--never had a problem [knock on wood], but the theory is that once the bolts are torqued, they stretch, or the threads stretch, or something like that, and bolts could break, or the head could warp, or the head gasket could leak--maybe I've been lucky...and i do push engines)--so if you want to do it right, use new head bolts--i just checked: about $50 for the 34 bolts, so i guess "an ounce of prevention" costs $50. good luck, and you can get some more info from http://www.boxwrench.net/specs/chevy_sb.htm

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