There is little doubt that Chevrolet’s crate engine program has changed dirt track racing in this millennium. There are Chevrolet crate engine options in every form of dirt track racing these days. To reward those racers that opt to sit behind one of Chevrolet’s factory crate engines on the track, the company is offering rebates of $150, $200, or $250, depending on the circle track crate engine purchased.
There are three options available for the rebate program, a $150, $200, or $250 Mail-in Rebate on the purchase of an eligible Chevrolet Performance Circle Track Crate Engine. The rebate program is open through March 31, 2019.
The eligible engines include:
The CT350 Crate Engine
CT350 Tech Specs:
- Part Number: 88869602
- Engine Type: Chevy Small-Block V-8
- Displacement (cu. in.): 350
- Bore x Stroke (in.): 4.000 x 3.480
- Block (P/N 10105123): Cast-iron with four-bolt main caps
- Crankshaft (P/N 10243068): Nodular iron
- Connecting rods (P/N 10108688): Powdered-metal steel
- Pistons (P/N 94672680): Hypereutectic aluminum
- Camshaft type (P/N 24502476): Hydraulic flat tappet
- Camshaft lift (in.): .435 intake / .460 exhaust
- Camshaft duration (@.050 in.): 212-degrees intake / 222-degrees exhaust
- Cylinder heads (P/N 12558060): Vortec iron; 64-cc chambers
- Valve size (in.): 1.940 intake / 1.500 exhaust
- Compression ratio: 9.12 nominal
- Rocker arms (P/N 10089648): Stamped steel
- Rocker arm ratio: 1.5:1
- Recommended fuel: Premium pump
- Ignition timing: 34-degrees total at 4,000 RPM
- Maximum recommended rpm: 5500 RPM
The CT400 Crate Engine
CT400 Tech Specs:
- Part number: 88869604
- Engine type: Chevy Small-Block V-8
- Displacement (cu. in.): 350
- Bore x Stroke (in.): 4.000 x 3.480
- Block (P/N 10243870): Cast-iron with four-bolt main caps
- Crankshaft (P/N 12670965): Forged steel, shot peened
- Connecting rods (P/N 10108688): Powdered metal steel
- Pistons (P/N 10159436): Hypereutectic aluminum
- Camshaft type (P/N 10185071): Steel hydraulic roller
- Camshaft Lift (in.): .474 intake / .510 exhaust
- Camshaft duration (@.050 in.): 208-degrees intake / 221-degrees exhaust
- Cylinder heads (P/N 12464298): Fast Burn aluminum, 62-cc chambers
- Valve size (in.): 2.000 intake / 1.550 exhaust
- Compression ratio: 9.72:1 Nominal
- Rocker arms (P/N 19210724): Aluminum, roller style
- Rocker arm ratio: 1.5:1
- Recommended fuel: Premium pump
- Ignition timing: 36-degrees total at 4,000 RPM
- Maximum recommended rpm: 5,800 RPM
The CT525 Crate Engine
CT525 Tech Specs:
- Part number: 19331563
- Engine type: LS-Series Gen-IV Small-Block V-8
- Displacement (cu. in.): 376 (6.2L)
- Bore x Stroke (in.): 4.065 x 3.62 (103.25 x 92mm)
- Block (P/N 12623967): Cast-aluminum with six-bolt, cross-bolted main caps
- Crankshaft (P/N 12597569): Nodular iron
- Connecting rods (P/N 12607475): Powdered metal
- Pistons (P/N 19207287): Hypereutectic aluminum
- Camshaft type (P/N 88958770): Hydraulic roller
- Valve lift (in.): .525 intake / .525 exhaust
- Camshaft duration (@.050 in.): 226-degrees intake / 236-degrees exhaust
- Cylinder heads (P/N 12629063): LS3 rectangle port; aluminum “as-cast” with 68-cc chambers
- Valve size (in.): 2.165 intake / 1.590 exhaust
- Compression ratio: 10.7:1
- Rocker arms (P/N 12569167 int): Investment-cast, roller trunnion
- Rocker arms (P/N 10214664 exh): Investment-cast, roller trunnion
- Rocker arm Ratio: 1.7:1
- Recommended fuel: Premium pump
- Maximum recommended rpm: 6,700 RPM
- Reluctor wheel: 58X
- Balanced: Internal
For more information on the crate engine rebate, or the other Chevrolet Performance products, visit them online at Chevrolet Performance.