24502500 This bare block is the same as P/N 10185049 except it has all 8620 steel main caps and all are CNC machined with standard 9.80” deck. The Gen V CNC-machined race prepared short deck Bow Tie block starts with the same casting used in th ... more info

Available late 1st Quarter!!! The legend of the all-aluminum big block continues. · ZL1 Heritage · Limited production · 24-month GMPP warranty ... more info

The 454 HO offers tremendous value in a big block crate engine. Based on the Gen VI block, this 425 horsepower cast iron head engine is a great choice for that muscle car in the garage. We've heard of several of our customers replacing their rare mat ... more info

There is no replacement for displacement, and torque is king. With 550 Ft. Lbs. of torque the 502 HO will launch your car harder than you thought possible. With its 450 horsepower and awesome torque the 502 HO may have the best power to dollar ratio ... more info

IN STOCK !!!! GET YOURS TODAY !!!! GM Performance Parts is about to make Chevy aficionados very happy with its all-new ZZ572. The 572ci big-block, is based on the new Sportsman tall-deck Bow Tie Gen-VI block, it is offered in several configurations: ... more info

Ram Jet 502, you either have one or you want one. With 502 horsepower at 5100 rpm and 565 ft-lbs of torque at 3200 rpm, the instantly throttle responsive Ram Jet 502 drives like no other big-block you've ever driven. With over 500 lb. of torque from ... more info

The ZZ454/440 offers tremendous value in a big-block crate engine. Based on the proven 454 HO with its Gen VI 454 block, the addition of GM Performance Parts Signature series aluminum heads, reduces weight and increases horsepower to 440, which is up ... more info

America's favorite big-block crate engine is now available fully assembled. All the same great parts used in the ZZ502 kit engines, but fully assembled for easier installation in your hot rod, street rod or sportsman racer. Available in two versions, ... more info

NOW AVALIABLE FOR ORDER !!!! ... more info

... more info

The 427 rat in a box returns to GM! · 430 horse · Pump gas friendly · 24-month GMPP warranty ... more info

NOW AVALIABLE FOR ORDER !!!!! ... more info

720 horsepower from a 572 ci crate engine. Built by GM Performance Parts and GM Racing exclusively for sportsman racers, the new ZZ572 / 720R is built around an all new Gen VI tall deck Bow Tie cylinder block. This all new race block is filled with a ... more info

NOW AVALIABLE FOR ORDER !!!! ... more info