Parts intended for competition use
Proposition 65

A Legacy of High Performance
Parts intended for competition use
Proposition 65

Up to
420 hp

Up to
408 lb.-ft.

Up to
5,800
Max Rec RPM

Up to
350 cu. in. (5.7L)
Displacement
View All Tech Specs
350 Engines
-
350 HO Turnkey
Unforgettable, world-class performance built on the original legendary assembly.
Tech Specs
Performance
Horsepower:
333 hp @ 5,100
rpm*
Torque:
381 lb.-ft. @ 3,700
rpm*
Max Rec RPM:
5,100
Internal Components
Crankshaft:
Forged steel
Connecting Rods:
Forged powder metal, shot peened
Pistons:
Cast aluminum
Intake Manifold
Dual-plane aluminum
Camshaft Type:
Hydraulic flat tappet
Rocker Arms:
Stamped steel
Engine Basics
Part Number:
19433031
Engine Type:
Chevy Small-Block V-8
Displacement:
350 cu. in. (5.7L)
Block:
Cast iron with 4-bolt main caps
Balanced:
External
Measurements
Bore x Stroke:
4.000 in. x 3.480 in
Valve Lift (in):
.435 intake / .460 exhaust
Camshaft Duration:
212° intake / 222° exhaust
Compression Ratio:
9.6:1
Rocker Arms:
Stamped steel
Rocker Arm Ratio:
1.5:1
Cylinder Head and Valves
Cylinder Heads:
Vortec iron; 62cc chambers
Valve Size (in):
1.940 intake / 1.500 exhaust
Water Pump:
Cast iron, long-style
Fuel and Ignition
Flexplate:
12.750”
Ignition Timing:
32° Total @ 4,000 rpm
Recommended Fuel:
Premium pump
Reluctor Wheel:
58x
Show Less
Tech Specs
Performance
Horsepower:
333 hp @ 5,100
rpm*
Torque:
381 lb.-ft @ 3,700
rpm*
Max Rec RPM:
5,100
Engine Basics
Part Number:
19433031
Engine Type:
Chevy Small-Block V-8
Displacement:
350 cu. in. (5.7L)
Block:
Cast iron with 4-bolt main caps
Balanced:
External
Measurements
Bore x Stroke:
4.000 in. x 3.480 in
Valve Lift (in):
.435 intake / .460 exhaust
Camshaft Duration:
212° intake / 222° exhaust
Compression Ratio:
9.6:1
Rocker Arms:
Stamped steel
Rocker Arm Ratio:
1.5:1
Internal Components
Crankshaft (P/N 12691722):
Forged Steel
Connecting Rods:
Forged powder metal, shot peened
Pistons:
Cast aluminum
Intake Manifold:
Dual-plane aluminum
Camshaft Type:
Hydraulic flat tappet
Camshaft Type:
Hydraulic roller
Rocker Arms:
Stamped steel
Cylinder Head and Valves
Cylinder Heads:
Vortec iron; 62cc chambers
Valve Size (in.):
1.940 intake / 1.500 exhaust
Water Pump:
Cast iron, long-style
Fuel and Ignition
Flexplate:
12.750”
Ignition Timing:
32° Total @ 4,000 rpm
Recommended Fuel:
Premium pump
Reluctor Wheel:
58x
-
SP350/357 Turnkey
The next 350 evolution — high torque and horsepower from modern valvetrain technology.
View SP350/357
The next 350 evolution — high torque and horsepower from modern valvetrain technology.
View SP350/357
Tech Specs
Performance
Horsepower:
357 hp @ 5,500 rpm
Torque:
407 lb.-ft @ 4,000 rpm
Max Rec RPM:
5,600 rpm
Internal Components
Crankshaft:
Forged steel
Connecting Rods:
Forged powder metal, shot peened
Pistons:
Cast aluminum
Intake Manifold:
Dual-plane aluminum
Camshaft Type:
Hydraulic roller
Rocker Arms:
Stamped steel
Engine Basics
Part Number:
19433034
Engine Type:
Chevy Small-Block V-8
Displacement:
350 cu. in. (5.7L)
Block (P/N 19431835):
Cast iron with 4-bolt main caps
Balanced:
External
Measurements
Bore x Stroke:
4.000 in. x 3.480 in
Valve Lift (in):
0.473 intake / 0.473 exhaust
Camshaft Duration (@ .050 in):
215° intake / 223° exhaust
Compression Ratio:
9.0:1 nominal
Rocker Arm Ratio:
1.5:1
Cylinder Head and Valves
Cylinder Heads:
Cast iron; as cast with 62cc chambers
Valve Size (in):
1.940 intake / 1.500 exhaust
Fuel and Ignition
Flexplate (P/N 14088765):
12.750”
Ignition Timing:
32° total @ 4,000 rpm
Recommended Fuel:
Premium pump
Show Less
Tech Specs
Performance
Horsepower:
357 hp @ 5,500 rpm
Torque:
407 lb.-ft @ 4,000 rpm
Max Rec RPM:
5,600 rpm
Engine Basics
Part Number:
19433034
Engine Type:
Chevy Small-Block V-8
Displacement:
350 cu. in. (5.7L)
Block (P/N 19431835):
Cast iron with 4-bolt main caps
Balanced:
External
Measurements
Bore x Stroke:
4.000 in. x 3.480 in.
Valve Lift (in):
0.473 intake / 0.473 exhaust
Camshaft Duration (@ .050 in):
215° intake / 223° exhaust
Compression Ratio:
9.0:1 nominal
Rocker Arm Ratio:
1.5:1
Internal Components
Crankshaft:
Forged Steel
Connecting Rods:
Forged powder metal, shot peened
Pistons:
Cast aluminum
Intake Manifold:
Dual-plane aluminum
Camshaft Type:
Hydraulic roller
850-cfm
Rocker Arms:
Stamped steel
Cylinder Head and Valves
Cylinder Heads:
Cast iron; as cast with 62cc chambers
Valve Size (in.):
1.940 intake / 1.500 exhaust
Fuel and Ignition
Flexplate (P/N 14088765):
12.750”
Ignition Timing:
32° total @ 4,000 rpm
Recommended Fuel:
Premium pump
-
SP350/385 Turnkey
Breathtaking performance — a 350 using every cubic inch of air drawn through it.
View SP350/385
Breathtaking performance — a 350 using every cubic inch of air drawn through it.
View SP350/385
Tech Specs
Performance
Horsepower:
385 hp @ 5,600 rpm
Torque:
405 lb.-ft @ 3,600 rpm
Max Rec RPM:
5,800 rpm
Internal Components
Crankshaft:
Forged steel, shot peened
Connecting Rods:
Forged powder metal, shot peened
Pistons:
Hypereutectic aluminum
Camshaft Type:
Hydraulic roller
Rocker Arms:
Stamped steel
Intake Manifold:
Dual-plane aluminum
Engine Basics
Part Number:
19433040
Engine Type:
Chevy Small-Block V-8
Displacement:
350 cu. in. (5.7L)
Block (P/N 19431835):
Cast iron with 4-bolt main caps
Balanced:
External
Measurements
Bore x Stroke:
4.000 in. x 3.480 in
Valve Lift (in):
.474 intake / .510 exhaust
Camshaft Duration:
208° intake / 221° exhaust
Compression Ratio:
9.6:1 nominal
Rocker Arm Ratio:
1.5:1
Cylinder Head and Valves
Cylinder Heads:
Fast Burn aluminum; 62-cc chambers
Valve Size (in):
2.000 intake / 1.550 exhaust
Fuel and Ignition
Flexplate (P/N 14088765):
12.750”
Ignition Timing:
36° total @ 4,000 rpm
Recommended Fuel:
Premium pump
Show Less
Tech Specs
Performance
Horsepower:
385 hp @ 5,600 rpm
Torque:
405 lb.-ft @ 3,600 rpm
Max Rec RPM:
5,800 rpm
Engine Basics
Part Number:
19433040
Engine Type:
Chevy Small-Block V-8
Displacement:
350 cu. in. (5.7L)
Block (P/N 19431835):
Cast iron with 4-bolt main caps
Balanced:
External
Measurements
Bore x Stroke:
4.000 in. x 3.480 in.
Valve Lift (in):
0.473 intake / 0.473 exhaust
Camshaft Duration:
208° intake / 221° exhaust
Compression Ratio:
9.6:1 nominal
Rocker Arm Ratio:
1.5:1
Internal Components
Crankshaft:
Forged steel, shot peened
Connecting Rods:
Forged powder metal, shot peened
Pistons:
Hypereutectic aluminum
Camshaft Type:
Hydraulic roller
Rocker Arms:
Stamped steel
Intake Manifold:
Dual-plane aluminum
Cylinder Head and Valves
Cylinder Heads:
Fast Burn aluminum; 62-cc chambers
Valve Size (in.):
2.000 intake / 1.550 exhaust
Fuel and Ignition
Flexplate (P/N 14088765):
12.750”
Ignition Timing:
36° total @ 4,000 rpm
Recommended Fuel:
Premium pump
-
ZZ6 Turnkey
Designed to dwarf the competition — the 350 with modern upgrades.
View ZZ6 Turnkey
Designed to dwarf the competition — the 350 with modern upgrades.
View ZZ6 Turnkey
Tech Specs
Performance
Horsepower:
405 hp @ 5,600 rpm
Torque:
406 lb.-ft. @ 4,600 rpm
Max Rec RPM:
5,800
Internal Components
Crankshaft:
Forged steel, shot peened
Connecting Rods:
Forged powder metal, shot peened
Pistons:
Hypereutectic aluminum
Intake Manifold:
Single plane aluminum
Rocker Arms:
Aluminum roller style
Engine Basics
Part Number:
19433042
Engine Type:
Chevy Small-Block
Displacement:
350 cu. in. (5.7L)
Block (P/N 19431835):
Cast iron with 4-bolt mains
Balanced:
External