Thread: BBC aluminum head question?

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i never re torqued any head bolts/studs on any bbc heads i ever did. iron or alum up to 14.8 CR and more on boost and some on Nos i used felpros race all of them from the#1037.1027.1017-1 .1017-2 .1057.1093.and the rols grafoil. mr gasket .cometics .and the detroit as well as the stock felpros. and others . now i will say i TQ the heads down not the same way as a stock job like a hi HP build iron or on alum heads if not studs i use a washer under the bolt with some moly past on both side of the washer .but the way i do them may only work for me .every head i have put on.i never lost a gasket from the way i have done them.but if you can not sleep at night then re tq them

Well, the ZZ502 crate installation manual says to retorque after the first 30 mile break-in. Probably wouldn't hurt to check the ones you can get to without dropping the exhaust. Although the bottom row under the exhaust ports are the shortest bolts and would be more proned to needing checked ..............

Kitz