Sbc 400 race PBM ALUMINUM block Features Intake valley opened up for oil drain back Restrictor provision in lifter bore Indexed .842 lifter bores Clearances for 4.00 stroke Arp studs Priority oiling system Nodular high strength main You want us to tourqe plate and gone to size Install cam bearings and frees plugs add 400 Custom performance & machine 765-537-9900 |