Karl Tyler Chevrolet: Parts - GM Performance Parts


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Home / Parts Department / GM Performance Parts

GM Performance parts offer factory built high quality and reliable performance engines. There's a GM Performance crate engine available for your high performance needs! Why build one when you can buy one?
Built by the people who know performance and back it with a 12 month warranty! Why use anything else?

3.4 HT 160 HORSEPOWER

Part # 12363230	Upgrade your tired 2.8 V6 in your S-truck (82-85) with more horsepower. 160 H.P. and 194 ft. lbs. of torque will give you more towing performance and off road fun. Your truck will feel better than new.

350 HO

Part # 12486041	Our lowest priced engine, this budget 350 offers 330 horsepower of durability dressed with chrome valve covers and timing cover, this is perfect for any street rod.

350 HO DELUXE

Part # 12496968	The 350 H.O. Deluxe takes the value leading 350 HO a step further by adding carburetor, distributor, water pump, torsional damper, and auto trans flexplate.

ZZ4 - 350

Part # 24502609

Imagine an aluminum head small block that makes 355 horsepower. What if it had a steel roller camshaft, four bolt main block, undercut rolled fillet crankshaft, high silicon pistons and strong PM connecting rods?
The ZZ4 is the evolution of our popular ZZ series of small blocks with over 400 ft. lbs. of torque.
The ZZ4 is the best way to put an aluminum head roller cam, high performance small block between your fenders.

RAM JET 350

Part # 12499120

The all-new 350 horsepower Ram Jet 350 from GM performance parts makes it easy to have electronic fuel injection on any vehicle originally equipped with a carb. The Ram Jet 350 is an assembled 350 crate engine with Vortec heads, Ram Jet induction system, wiring harness, MEFI 3 controller and detailed instructions. Once installed in the vehicle, a user needs only to supply 12V power and fuel.
Please note the fuel pump recommendations are in the Ram Jet instruction manual.

FAST BURN 385

Part # 12496769

The new fast burn uses the proven ZZ4 shortblock and adds to it the fast burn heads for 385 value packed horse power. The fast burn is an excellent choice for the basis of a custom engine.
Its strong forged steel crankshaft and forged powdered metal connecting rods have been proven to 500 horsepower and its fast burn cylinder heads are hungry for a little more camshaft. Approximately 425 horsepower at 6000 RPM is achievable by adding the hot cam and 1,6 self-align rocker arms.

HT 383

Part # 12499101 (previously # 12497317)

Specially tuned for torque, the all new HT 383 delivers great truck power in a small black package. With its 3.8" stroke and Vortec cylinder heads the HT 383 makes awesome torque, down low where you need it for towing or four wheeling off road. Peak torque is 415 ft. lbs. at 3500 RPM, but the HT 383 makes over 400 ft. lbs. from 2500 to 4000 RPM.
Developed as a truck engine, with a truck grind roller cam, heavy duty forged powdered metal connecting rods, forged crankshaft and hypereutectic pistons the HT 383 is designed to be worked. 325 horsepower at 4500 RPM doesn't hurt either. The HT 383 is an ideal replacement for any older carbureted truck engine.

454 HO

Part # 12568774

The H.O. stands for High Output, it also stands for big valves, rectangular ports, forged pistons, forged steel crankshaft, forged connecting rods and four bolt mains. When you add in the steel roller camshaft, shot peened rods, windage tray, one piece rear main seal and high speed single roller timing chain, it starts to sound more like the new performance big block of the new millennium... and it is!

502 HO

Part # 12568778	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 going.

ZZ 502 / 502

502 / 502 Long Block Kit 12371204............ CALL Assembled 12496963............ CALL	The king of all big block crate engines is the ZZ 502 / 502, with torque and horsepower that will have you grinning and streetable manners that will have your competition wondering what hit them. The ZZ 502 / 502 represents our latest and best efforts to develop awe inspiring big block power in a dependable, durable and driveable big block crate engine. With its big valve aluminum heads, roller camshaft and complete dyno tuned induction and ignition systems, this is as close as you come to a custom built 502 at crate engine prices. For those who like to grind on the heads, change cams, mill for compression or whatever, we've left it only partially assembled. Make no mistake, everything you need is there, but you don't need to disassemble anything to make head mods or intake swap. It really is the best of both worlds. Bolt it together and go, or tweak it to meet your specific needs. It's like someone at GM Performance Parts has been there, and we have.
502 / 502 Complete Kit 12371171............ CALL Assembled 12496962............ CALL

RAM JET 502

Part # 12499121 (previously # 12497323)

The 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 ft. lbs. of torque from 2200 to 5200 RPM, the Ram Jet 502 is a tire-shredding monster.
Designed for ease of installation the Ram Jet 502 needs only 12V ground, fuel feed, and return to run.
Included are an instruction sheet, service manual and diagnostic tool for ease of installation and service.

HT 502

Part #88890534

The key to towing performance is torque and the HT 502 crate engine has a whole lot of it. Not only does this crate engine make torque, but it makes it right where you need it, way down low.
With 502 ft. lbs. of torque an incredibly low 2800 RPM and 338 horsepower at 4500 RPM, this will climb hills.
Accelerate onto the highway and pull out to pass with the sort of confidence that you've come to expect from a GM Performance engine.

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