BluePrint PS502CTFKB Pro Series 502 621 HP Sniper EFI

Description

High tensile gray iron anchors the BluePrint PS502CTFKB Crate Engine, delivering 621HP at 5,800 RPM for demanding commercial long block repower assignments. This 502 cid 8.2L big block Chevy produces 640 ft-lbs torque through a precision Holley Sniper fuel injection system. Technicians must check vehicle hood clearance because the high rise intake manifold adds substantial vertical height.

ASTM A48 Class 35 heavy gray cast iron forms the 4-bolt main engine block. A forged 4340 chromoly crankshaft and forged H-beam rods reinforce this BluePrint Engines engine core. Electrical starter motors draw 190A on standard 12V systems. Dry engine weight measures 645 lbs inside dimensions of 31in length by 28in width by 30in height. Lubrication capacity requires 8.0 quarts.

Key Features of BluePrint PS502CTFKB

Fleet operators buy BluePrint PS502CTFKB Crate Engine packages to accelerate heavy industrial engine rebuild operations. The Holley Sniper electronic fuel injection system self tunes without requiring external laptop programming.

• Rectangular port aluminum cylinder heads feature 316cc intake runners for superior cylinder filling.
• Aggressive hydraulic roller camshaft profiles provide sustained lift without mechanical lash maintenance.
• The throttle body injection system monitors manifold absolute pressure to meter fuel delivery precisely.
• Forged aluminum pistons endure intense combustion pressure cycles without skirt collapse.
• The PS502CTFKB commercial core holds 0.0018in rod bearing clearance under high dynamometer loads.
• A heavy duty water pump circulates coolant through internal passages to eliminate hot spots.
• Steel core rubber valve cover gaskets stop oil seepage along top deck flanges.

Dynamometer Load Bench Test Limits

Dynamometer pulls certify 621HP at 5,800 RPM and 640 ft-lbs torque at 4,400 RPM for this PS502CTFKB long block engine. Pressure transducers verify 60 PSI oil gallery pressure at 2,500 RPM under steady 195°F coolant operating conditions. Compression testing reveals 190 PSI per cylinder with under 4% variance between banks. Crankshaft runout checks verify 0.0003in TIR. Exhaust gas temperature pyrometers measure 1,300°F during full output test runs.

Shop Installation Maintenance Protocol Requirements

Cable bracket geometry requires 5 lbs pull force to sweep the throttle valve from idle stop to wide open stop. Technicians should not install this heavy duty replacement engine into chassis with standard light duty transmissions unable to handle 640 ft-lbs torque.

• Discard break in oil after 500 miles or 20 hours then fill with 15W-50 synthetic blend oil.
• Inspect hydraulic lifters at zero lash plus one half turn before initial engine startup.
• Torque head bolts in three stages up to 80 ft-lbs following initial thermal break in.

Crate Manifest Warranty Protection Coverage

The BluePrint Engines build standard includes a 3-Year or 50,000-mile limited manufacturer warranty. The secure wooden crate contains the assembled long block core, Holley Sniper injection unit, distributor, water pump, harmonic balancer, oil pan, valve covers, plus the signed dynamometer test sheet.