Brand new set, i threaded 8 into the block and found out that a 4.1 stock block uses different length.These are for GN1 heads on a 109 block
100 shipped
They are on there way from Champion now,Its a local guys motor,stock crank,rods,trws,billet roller 224,champion intake,72 bb q trim,girdle.Trying ot finish it up now
Brand new set, i threaded 8 into the block and found out that a 4.1 stock block uses different length.These are for GN1 heads on a 109 block
100 shipped