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Different Levels of GM Crate Engine Assemblies

The GM Performance Parts crate engines come in four distinct levels, ranging from starter Partial Engines all the way up to complete Turn-Key engines that are ready to be dropped into your favorite hot rod and blast down the road. Each level of completion represents a different starting point for each individual customer. It also means that you can tailor your crate engine to your specifications by buying the level that’s right for you. If you don’t have all the parts to finish the Partial Engine, just check out our GM Performance Parts Components section for exactly what you need. Or, our Turn-Key crate engines are just that—ready to rock horsepower as soon as you install it.

GM Crate Engines -

A complete GM Performance Parts engine delivered right to your door!

Let GM Performance Parts take the guess work out of your next engine project. Let’s face it—making several trips to the machine shop to get all of your old, used parts reconditioned can be a major drag. Often, when you finally get your parts back together, you end up with an engine that doesn’t live up to its true potential because of mismatched parts or parts that have questionable integrity. You can put an end to that frustration with a GM Performance Parts crate engine. GM Performance Parts crate engines are designed by our engineers to deliver reliable horsepower at a maximum value. They are assembled using only the finest high performance parts available, and every component of our crate engines is brand new.

A GM Performance Parts crate engine features our premier block, rotating assemblies, high performance heads, and, if you choose the Turn-Key level, all of the supporting equipment necessary to have a working engine the day you get it. Our GM Performance Parts engineers have also tested all of these combinations in real project cars and on the dyno so that you know exactly what you are getting.

In addition, all of the GM Performance Parts crate engines have been tested for 50 hours at the rpm of maximum torque and horsepower—a validation process that no one in the industry can match.

If that wasn’t enough, GM Performance Parts also includes a 12-month warranty on all of their crate engines when installed in a street car. So not only do you get an amazing performance engine right out of the box, you also have the confidence that GM will back that motor in the unlikely event that something breaks. You won’t get that from your local rebuild center, salvage yard, or engine shop.

Uncompromised performance, new parts that are designed to work together the first time, turn-key performance from the day the crate arrives, a 12-month warranty, and unmatched value—how can you go wrong? Don’t waste your time and money rebuilding a tired, old engine. Get a GM Performance Parts crate engine and get your GM performance vehicle back on the road—or track.

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Crate Engine Quick Reference Chart

CHEVY SMALL-BLOCK V-8 Part Number Description Engine Size HP Torque Page 12499529 350/290 HP—Economy Performance Engine 350 cu in 290 326 36 12499711 350 HO Turn-Key—with Iron Vortec Heads 350 cu in 330 380 40 12496968 350 HO Deluxe—with Iron Vortec Heads 350 cu in 330 380 42 12486041 350 HO Base—with Iron Vortec Heads 350 cu in 330 380 42 12499712 ZZ4 Turn-Key—with Aluminum Heads 350 cu in 355 405 44 24502609 ZZ4 Base—with Aluminum Heads 350 cu in 355 405 46 12561723 ZZ4 Partial Engine 350 cu in N/A N/A 46, 54 12499120 Ram Jet 350—PFI with Iron Vortec Heads 350 cu in 350 400 48 12499710 Fast Burn 385 Turn-Key—with Aluminum Vortec Heads 350 cu in 385 385 52 12496769 Fast Burn 385 Base—with Aluminum Vortec Heads 350 cu in 385 385 54 17800393 HT 383E 383 cu in 340 435 56 12499101 HT 383 Base—Performance Engine 383 cu in 340 435 58 12499106 383 Partial Engine 383 cu in N/A N/A 60, 64 12498772 ZZ383/425—High Performance Engine 383 cu in 425 449 62 LS SERIES SMALL-BLOCK V-8 Part Number Description Engine Size HP Torque Page 19165628 5.3 High Output 5.3L 332 352 70 17801267 LS1—without ECM and Wire Harness 5.7L 350 365 72 17801268 LS6—2004 Corvette 206 Gen III V-8 5.7L 405 400 74 12498399 LS6—Service Engine with Camaro Oil Pan Kit (Aluminum Block) 5.7L 405 400 76 19156261 LS2—2006 Corvette Gen IV V-8 (58 Tooth Reluctor Wheel) 6.0L 400 400 78 17802134 LS 364/440—Carbureted LS2 6.0L 440 412 80 19156262 LQ9—Used in Cadillac Escalade and Chevy Silverado SS 6.0L 345 380 84 19165485 L92 6.2L 403 417 86 17802397 LS7—2006 Corvette Z06 7.0L 505 470 88 CHEVY BIG-BLOCK V-8 Part Number Description Engine Size HP Torque Page 12568774 454 HO—with Iron Heads and Roller Cam 454 cu in 425 500 96 12498778 454 Partial Engine 454 cu in N/A N/A 98, 102 12498777 ZZ454/440—440 Horsepower with Aluminum Heads 454 cu in 440 500 100 12568782 ZZ502 Partial Engine 502 cu in N/A N/A 106, 110, 114, 118 12568778 502 HO—with Iron Heads and Roller Cam 502 cu in 450 550 108 12496963 ZZ502 Base Engine, with Aluminum Heads 502 cu in 502 567 112 12371204 ZZ502 Base Kit, with Aluminum Heads 502 cu in 502 567 114 12496962 ZZ502 Deluxe—(Deluxe/Assembled) with Aluminum Heads 502 cu in 502 567 116 12371171 ZZ502 Deluxe Kit, with Aluminum Heads 502 cu in 502 567 118 12499121 Ram Jet 502—PFI with Aluminum Heads 502 cu in 502 565 120 12498793 ZZ572/620 Deluxe 572 cu in 620 650 124 12498792 ZZ572/620 Base 572 cu in 620 650 126 12499190 572/620 Partial Engine 572 cu in N/A N/A 126 12498827 ZZ572/720R Deluxe 572 cu in 720 685 128 12498826 ZZ572/720R Base 572 cu in 720 685 130 12498825 572/720 Partial Engine 572 cu in N/A N/A 130 RPO ENGINES Part Number Description Engine Size HP Torque Page 19156263 Ecotec 2.2—Naturally Aspirated Engine 2.2L 145 155 134 12363230 HT 3.4 V-6—S-10 Truck Repower 3.4L 160 194 135 12499470 3800 Series III SC—Supercharged V-6 used in 2004 Pontiac Grand Prix GTP 3.8L 260 280 136 17802896 LC3 Northstar—Used in Cadillac STSV and XLRV 4.4L 469 439 137   RACING ENGINES Part Number Description Engine Size HP Torque Page 88958602 Circle Track 350/350 350 cu in 350 390 144 88958603 Circle Track 350/355 350 cu in 355 405 146 88958604 Circle Track 350/400 350 cu in 400 400 148 GM Parts ENGINES Part Number Description Engine Size HP Torque Page 12491851 4.8L LR4 292 cu in 275 285–290 154 12491854 5.3L LM7/L59 325 cu in 285 325–330 155 12491857 6.0L LQ4/LQ9 364 cu in 300–325 360–370 156 12607031 2.2L L61 134 cu in 135–143 142 157 12491869 4.3L LU3 262 cu in 180–200 245–260 158 89017618 8.1L L18 496 cu in 225–340 350–455 159 10067353 5.7L Gen 0 350 cu in 195 N/A 160 12568758 5.7L Gen I 350 cu in N/A N/A 161 12491355 7.4L L19/L29 454 cu in 230-270 N/A 162 12575091 4.2L LL8 256 cu in 275 275 163

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