New Fast Burn heads with beehive springs add high-rpm performance and durability!
We’ve added greater high-rpm durability to the CT400 racing engine with new Fast Burn heads that feature beehive-type valve springs and complementing valvetrain components. The beehive springs enable greater high-rpm performance and durability. They allow the engine to rev higher to make the most of every cubic inch of air drawn through it.
This brand-new, factory-sealed racing engine is based on the new ZZ5 street crate engine, but includes a racing-only 8-quart circle track oil
pan, with dual kick-out design, along with a valve cover breather kit. The new, lightweight aluminum cylinder head casting – distinguished by
new Bowtie logos cast into the ends – is based on the proven Fast Burn design, with large intake runners and 2.00/1.55-inch valves.
The CT400 racing engine has a tough bottom end, anchored by a forged steel crankshaft and hypereutectic pistons installed in a brand-new
block with four-bolt mains. The assembly also includes an open-plenum high-rise intake manifold and 1.5:1-ratio aluminum roller rockers.
Put a “fast burn” on the competition – with greater high-rpm performance than ever before!
Circle Track 400 Tech Specs:
Engine Type: Chevy small-block V8
Displacement (cu in): 350
Bore x stroke (in): 4.00 x 3.48
Block (P/N 10105123): Cast iron with 4-bolt main caps
Crankshaft (P/N 12556307): Forged steel
Connecting rods (P/N 10108688): Powdered metal
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° intake/221° exhaust
Cylinder heads (P/N 12464298): Aluminum; 62cc chambers
Valve size (in): 2.00 intake/1.55 exhaust
Compression ratio: 9.5:1 Nominal
Rocker arms (P/N 19210724): Aluminum; roller style
Rock arm ratio: 1.5:1
Recommended fuel: 92 octane
Ignition Timing: Base 10° BTDC, 30° Total
Maximum recommended rpm: 5800
Note: Distributor with melonized steel gear MUST be used with long blocks and partial engines with steel camshafts, or engine damage will occur.
• Requires addition of carburetor, starter, ignition, plug wires, water pump, distributor and exhaust system (not included).
• Requires an externally balanced flywheel (not included).
• The 8-quart Circle Track oil pan is 7 inches deep at the sump. It will clear most GM rear-steer chassis with stock engine location.