Thayer's Automotive Competitive Engines...taking mild to wild one engine at a time!
Completely rebuilt 603. New style pistons, 6 1/2 oil pan, small balancer
Has early forged crank Newer p/m rods Forged mahle pistons Bowtie heads Older block 6” balancer 6 1/2 moroso oil pan Alliance sealed
4 BOLT MAIN BLOCK .060 OVER SPEEDPRO FORGED PISTONS NODULAR CRANKSHAFT COMP HYDRAULIC CAM GM LIFTERS VORTEC HEADS W/STAINLESS STEEL VALVES 1.6 ROLLER ROCKERS STREET STRIP OIL PAN 390 HP
$850
$8500
$2900
$3200