12486041 - 350  330hp

 GM LIST: $3,328.57
 TSEC PRICE: $2930

The lowest priced performance crate engine, the 330 horsepower 350 HO doesn't sacrifice power or durability, it just pumps up the value. With its 4-bolt main block, nodular iron crankshaft, forged steel connecting rods and light but strong cast aluminum pistons, this engine screams durability. Add to the strong foundation a pair of 64cc Vortec cast iron cylinder heads and a dual pattern camshaft with just a bit of a "lumpy" idle, and you've got the muscle car small block that you've been looking for. Dressed to impress with chrome valve covers and front timing cover, this engine will look great between the fenders of your favorite street rod, muscle car or grass roots racer. The cylinder heads on this great little performer use 1.94" intake and 1.50" exhaust valves that are sprung with 1999 corvette L31 valve springs. The 64cc chambers yield a healthy, yet streetable 9.1 to 1 compression ratio. The cam is a modern dual pattern interpretation of the old '65 to '67 corvette 327 cam. But with more lift and duration on the exhaust side, it does a better job of clearing exhaust from the combustion chamber. We also decreased the duration and lift ever so slightly on the intake side to build more cylinder pressure. The result is a cam that makes great torque and horsepower with the 350 HO's 9.1 to 1 compression ratio. Add the new dual plane intake manifold GM# 12366573, 600-650 cfm carburetor, HEI distributor, balancer, water pump and exhaust manifold or a pair of headers and you have an outstanding muscle motor with a broad, smooth torque curve and an honest 330 horsepower. This manifold has four bolts, not six, to attach it to the cylinder head. Older six-bolt manifolds will not fit the new Vortec heads. The 350 HO is not intended for marine use, and should only be used in 1973 and earlier pre-emissions street vehicles or any year off road vehicles.
Technical Notes:   Engine ID code is CC. Requires a counterweighted flywheel or flexplate, (GM Part#'s 10105832, 14088646, 14088650, 14088765, or 14088767).  Requires either a 6.75" (GM# 6272221) or 8" (GM#12551947) harmonic balancer. Oil dipstick located on right side (passenger's). 650 cfm carb recommended. Chrome valve cover's and timing cover included. Intake manifold, distributor, flywheel, harmonic balancer, water pump, and exhaust manifolds are not included.

12496968 350 330hp

  GM LIST: $4,821.42
 TSEC PRICE: $3975

The 350 HO Deluxe takes the value leading 350HO/330HP Crate Engine a step further by adding carburetor, distributor, water pump, torsional damper, and auto trans flexplate. This enhancement to the Vortec headed 350HO makes it easier than ever to repower your street rod, street machine or sportsman racer. The 600 cfm vacuum secondary Holley carburetor is ideally suited to the 350HO. And the proven GM HEI distributor will give years of worry-free driving. With a 9.1:1 compression ratio, it's pump gas friendly, and with its muscle car idle it's cruise night cool. With GM Performance Part's lowest priced small-block crate engine there is no reason to rebuild that junk yard clunker and since it's complete from carb-to-pan there is no need to chase parts ! The 350 HO is not intended for marine use, and should only be used in 1973 and earlier pre-emissions street vehicles or any year off road vehicles.

12499120  - Ram Jet 350 Click Here

The 350 HO Deluxe takes the value leading 350HO/330HP Crate Engine a step further by adding a Ram Jet EFI system to make 350HP

   GM LIST:$6,792.85
 TSEC PRICE: $5450

 Click Here For Details and the 383 Upgrade. Also RamJet sold sperately

24502609 - ZZ4 350 355HP

 GM LIST: $5,357.14

TSEC PRICE: $4350

Imagine an aluminum head small block that makes 355 horsepower. What if it had a street roller camshaft, 4-bolt main block, 1053 forged steel crankshaft, high silicon pistons and strong PM connecting rods ? We imagined it, and then engineered, developed, tested and built it. The ZZ4 is the evolution of our popular ZZ series of small blocks that power thousands of street rods, hot street cars, circle track racers and drag racers. 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 favorite fenders. The aluminum angle plug cylinder heads have screw in rocker studs, 1.94" intake and 1.50" exhaust valves and 58cc combustion chambers that yield a crisp and responsive 10 to 1 compression ratio. Also included are our lightweight valve spring retainers that weigh half as much as our previous design. The valve seats are radiused and we have included valve stem seals to help keep the oil where it belongs. To compliment the cylinder head design, we've incorporated a steel roller tappet camshaft with .474" intake and .510" exhaust valve lift. The combination makes 355 horsepower at 5250 rpm and has that great sounding muscle car idle, with just enough lope to let people know this is no station wagon engine. Also included with the ZZ4 is an HEI distributor with an ignition timing advance curve developed for performance, a dual plane aluminum intake manifold that accepts your spread bore or square bore carburetor, an 8" high-rpm harmonic balancer, 12.75" automatic trans flex plate and a cast iron water pump. It even has the spark plugs in it when it was test fired at the factory for quality control checks. The ZZ4 is currently our most popular crate engine, and you can see why. With a long history of successes in circle track and drag racing as well as street rods and other performance applications, the ZZ4 may just be the bullet for your next project. The ZZ4 is not intended for marine use, and should only be used in 1973 and earlier pre-emissions street vehicles or any year off road vehicle. Technical Notes: Carb, plug wires, starter, oil filter and oil filter adapter, and exhaust manifolds not included.

Cylinder heads-Part # 12556463 cast Aluminum 1987-1991 Corvette L98 Head. 58cc Combustion Chamber 163cc Intake Runner Volume.1955-1986 Intake manifold Bolt pattern "D" Shaped Exhaust portsCenterbolt Only Valve Cover Bolt Pattern LayoutNo Exhaust heat Crossover passages.Ends Of Heads Are Drilled For Standard Accessory Bolt Pattern. Angle Plug Configuration.

12561723 - ZZ Small-Block Partial (shortblock) Engine

 GM LIST: $2,892.86

TSEC PRICE: $2350

With it's 4-Bolt main block and forged steel crankshaft The ZZ4 Partial Engine is a proven winner. Used as the foundation for thousands of ZZ4 and Fast Burn 385 engines and the legendary ZZ430 The ZZ4 Partial Engine has a long history of performance and durability. Its forged LT4 powdered metal connecting rods and light flat top hypereutectic pistons ensure high RPM performance. Provisions for a steel roller camshaft and one piece rear main seal are "state of the art". Technical Note:  Does not include camshaft timing chain sprockets front cover oil pump oil pan balancer or flexplate.

Add AFR 195cc Heads Comp Cams XE camshaft, a TPC Carb and Edelbrock RPM Air Gap Manifold MSD Distributor and Pre Started for a more powerful combination!!!!

12496769 - Fast Burn 350 385hp  

 GM LIST: $6,128.58
TSEC PRICE: $4900

With more ZZZ through ZZ4 crate engines sold over the years than any other high performance crate engine, it only makes sense that GMPP would continue to improve that successful family of engines. The new Fast Burn 385 uses the proven ZZ4 shortblock and ads to it the Fast Burn aluminum cylinder heads for 385 value packed horsepower. With value in mind, the Fast Burn 385 uses stamped steel rocker arms and the same ZZ4 camshaft that powers thousands of hot rods. The Fast Burn 385 is an excellent choice for the basis of a custom engine. Its strong forged steel crankshaft and forged powder metal connecting rods have been proven to 500 horsepower. And its Fast Burn cylinder heads are hungry for a little more cam. 430 horsepower at 6000 RPM is achievable by adding the HOT cam and 1.6 ratio self aligning rocker arms. Value priced small-block power, great durability, easy power upgrades. It's all that and more from the "More Than Just Power"  people at GMPP. The Fast Burn 385 is not intended for marine use, and should only be used in 1973 and earlier pre-emissions street vehicles or any year off road vehicle.

12499101  HT383

 GM LIST: $5,507.14
 

TSEC PRICE: $4450

The lowest priced performance crate engine, the 330 horsepower 350 HO doesn't sacrifice power or durability, it just pumps up the value. With its 4-bolt main block, nodular iron crankshaft, forged steel connecting rods and light but strong cast aluminum pistons, this engine screams durability. Add to the strong foundation a pair of 64cc Vortec cast iron cylinder heads and a dual pattern camshaft with just a bit of a "lumpy" idle, and you've got the muscle car small block that you've been looking for. Dressed to impress with chrome valve covers and front timing cover, this engine will look great between the fenders of your favorite street rod, muscle car or grass roots racer. The cylinder heads on this great little performer use 1.94" intake and 1.50" exhaust valves that are sprung with 1999 corvette L31 valve springs. The 64cc chambers yield a healthy, yet streetable 9.1 to 1 compression ratio. The cam is a modern dual pattern interpretation of the old '65 to '67 corvette 327 cam. But with more lift and duration on the exhaust side, it does a better job of clearing exhaust from the combustion chamber. We also decreased the duration and lift ever so slightly on the intake side to build more cylinder pressure. The result is a cam that makes great torque and horsepower with the 350 HO's 9.1 to 1 compression ratio. Add the new dual plane intake manifold GM# 12366573, 600-650 cfm carburetor, HEI distributor, balancer, water pump and exhaust manifold or a pair of headers and you have an outstanding muscle motor with a broad, smooth torque curve and an honest 330 horsepower. This manifold has four bolts, not six, to attach it to the cylinder head. Older six-bolt manifolds will not fit the new Vortec heads. The 350 HO is not intended for marine use, and should only be used in 1973 and earlier pre-emissions street vehicles or any year off road vehicles.
Technical Notes:   Engine ID code is CC. Requires a counterweighted flywheel or flexplate, (GM Part#'s 10105832, 14088646, 14088650, 14088765, or 14088767).  Requires either a 6.75" (GM# 6272221) or 8" (GM#12551947) harmonic balancer. Oil dipstick located on right side (passenger's). 650 cfm carb recommended. Chrome valve cover's and timing cover included. Intake manifold, distributor, flywheel, harmonic balancer, water pump, and exhaust manifolds are not included.

  12499106 GM 383 Short Block Assemly

GM LIST: $4,328.57

TSEC PRICE: $3850

DESCRIPTION: ENGINE
12498332 Engine Parital 383ci
What a great starting point to build your own hot rod 383 engine. The only major items you will need to complete your engine are cam, lifters, cylinder heads, and manifold.
This 383 ci partial engine is used on all 383 crate engines.
The partial engine includes the following items:
P/N 88959106 - Block, 383 stroker after machining - Q/P 1
P/N 12489436 - Crankshaft, 383 stroker - Q/P 1
P/N 10120990 - Bearing standard front & intermediate - Q/P 4
P/N 10120993 - Bearing standard rear - Q/P 1
P/N 12523924 - Bearing standard connecting rod - Q/P 8
P/N 14088784 - Sprocket, crankshaft - Q/P 1
P/N 14088765 - Flexplate assembly - Q/P 1
P/N 12497624 - Rod, connecting single 383 - Q/P 8
P/N 12489437 - Piston & pin assembly standard 383 - Q/P 8
P/N 12522848 - Ring set standard 383 stroker - Q/P 8
P/N 12555283 - Pump assembly, oil - Q/P 1
P/N 12550042 - Pump assembly (screen) - Q/P 1
P/N 3764552 - Shaft, oil pump drive - Q/P 1
P/N 12557558 - Pan assembly, oil - Q/P 1
P/N 10108676 - Gasket, oil pan - Q/P 1
P/N 12562818 - Cover, front timing (plastic)- Q/P 1
P/N 12498008 - Balancer - Q/P 1
The partial engine does not include camshaft, lifters, timing chain or cam sprocket. The oil pan is loosely assembled on the block. So it can be disassembled without destroying the pan gasket.

12498772  ZZ383 425hp

GM LIST: $6,685.71

TSEC PRICE: $5250

The all new ZZ383 offers Big Block performance with a Small Block price tag. GMPP starts with the legendary Fast Burn cylinder heads and 383cid, to offer an incredible 460 ft. lbs. of torque @ 4500 rpm with a smooth, linier delivery. The combination of a 3.800” steel crank and a stout .509/.528 lift hydraulic roller camshaft produces 425hp @ 5400 rpm, making the ZZ383 the benchmark by which all other 383cid small blocks will be measured. GM’s testing was completed using a GM single-plane intake manifold, a 750cfm Demon mechanical secondary carb, and 1-3/4” primary x 33” length headers with a 4” collector. A dual-plane intake manifold can be used, but will affect overall peak performance numbers by 15-20 HP. TECH SPECS: *Horsepower: 425 @ 5400 *Torque: 460 @ 4500 *Max. Recommended RPM: 6000 *Compression Ratio: 9.7:1 *Crankshaft: Forged Steel *Connecting Rods: 10108688 PM Rods. *Camshaft 12370846 (hydraulic roller): -Gross Lift (.509” I / .528” E.) -Duration @ .050 (222 I / 230 E). *Cylinder Heads: 12464298 aluminum 62cc. combustion chambers. *Rockers: 1.5:1 Roller Rocker *Four bolt main block *Powdered Metal Connecting Rods *8” Balancer *GM aluminum single-plane intake manifold

Cylinder heads-Part # 12464298 Aluminum Fast Burn Head 62cc Combustion Chamber 210cc Intake Runner Volume"Fast Burn" Combustion Chambers with 2.00" Lightweight Hollow Stem Intake Valves and 1.55" Sodium Filled Exhaust Valves. LT4 Corvette Valvesprings and lightweight retainers are used.This head has "D" shaped exhaust ports and has Dual bolt pattern Intake manifold and valve cover configurations.

 Availble with TPC Carb and Edelbrock RPM Air Gap Manifold MSD Distributor and Pre Started.

plus $220 Edelbrock RPM manifold and $550 for a Vacuum secondary TPC tuned 750 Holley carb,
(electric choke extra) Total $5570. Plus Freight

12464298 - Cylinder Head "Aluminum Fast Burn"

This head can be used on any 1958-2000 283-400ci small block Chevrolet V8 engine with conventional water flow design but this head cannot be used on any LT1 LT4 or LS1 engines that are designed with reverse water flow.

The all new 23 degree small block cylider head has the highest perfprmance potential of any 23 degree small block head developed by GM.