Forged LSA Short Block with Thompson Rotating Assm, Thompson Motorsports (PICTURE IS FOR REFERENCE ONLY) LSA with TMS forged rotating assembly and Diamond forged pistons GM LSA Block GM LSA Crankshaft 8 Bolt Factory Forged King racing...

6.2 LS3 376/416 Short Block Fully Forged 900HP, Thompson Blue printed New LS3 aluminum block Gen IV ACL coated racing main bearings King racing narrowed rod bearings Thompson Motorsports single piece racing cam bearings  K1 forged...

6.2 Aluminum LS3 Short Block w/ Forged Pistons 800HP, Thompson Blueprinted NEW GM block 6.2 LS3 ALUMINUM King racing main bearings  King racing rod bearings  GMPP cam bearings New GM 6 bolt nodular crankshaft K1 4340 forged...

6.2 Aluminum LS3 Short Block w/ Forged Pistons 700HP, Thompson Motorsports Blueprinted NEW GM LS3 ALUMINUM Block King racing main bearings King racing rod bearings GMPP cam bearings GM connecting rods TMS manufactured cores GM...

Stage 3 5.7 LS1 346/383 Short Block Blueprinted GM block L33 core King racing main bearings King racing rod bearings Thompson Motorsports single piece racing cam bearings K1 forged crankshaft with reluctor 3.622" or 4.000" K1 4340...

Stage 2 5.7 LS1 Short Block Blueprinted GM block L33 core King racing main bearings King racing rod bearings Thompson Motorsports single piece racing cam bearings GM Nodular crankshaft  K1 4340 forged H-beam connecting...

Stage 1 5.7 LS1 Short Block Blueprinted GM block L33 core King racing main bearings King racing rod bearings Thompson Motorsports single piece racing cam bearings GM Nodular crankshaft turned core GM connecting rods TMS...

GM Performance LSX 454 Long Block Engine 7.4L, Iron Block 11:1 These Chevrolet Performance Parts LSX 454 crate engines are filled with an all-forged, super-tough rotating assembly and feature a pair of new Chevrolet Performance deep-breathing LSX 6-bolt...