BluePrint PS502CTF Pro Series Chevy 502 621 HP EFI Crate Engine

Description

Propel pro touring street builds with the BluePrint PS502CTF Pro Series Crate Engine. Displacing 502 cubic inches across an aftermarket big block Chevy platform, this fuel injected motor yields 621 horsepower at 5800 RPM and 615 lb-ft torque at 4500 RPM. Self learning throttle body fuel injection pairs with high velocity aluminum heads to provide instant acceleration across all driving conditions.

Brand new cast iron big blocks feature four bolt splayed billet steel main caps to withstand massive rotational torque. The reciprocating group combines a 4340 forged steel 4.000 inch stroke crankshaft, forged 6.385 inch H-beam connecting rods, and forged pistons inside 4.470 inch bores. The 10.3:1 compression ratio operates on 93 octane pump gas. Sump capacity measures eight quarts, bringing dry weight to 560 lbs.

Key Features of BluePrint PS502CTF

Buy BluePrint PS502CTF crate engine configurations to equip custom track cars and pro touring projects with modern electronic fuel injection. The long block package provides essential induction and fuel metering components while leaving front accessory drive bracket selection open.

• Electronic throttle body EFI injection monitors air charge density in real time for optimal fuel mixture.
• Large 4.470 inch cylinder bore diameter unshrouds valves to maximize high RPM cylinder charging.
• Rectangular port aluminum cylinder heads drop dead chassis weight while resisting high temperature detonation.
• Forged 4340 steel crankshaft produces 615 lb-ft torque to launch heavy vehicle chassis hard off the line.
• BluePrint PS502CTF valvetrain components feature full roller rocker arms to minimize friction.
• High energy HEI distributor provides hot ignition spark to keep plugs firing clean under heavy acceleration.
• Hydraulic roller camshaft profile creates sharp valve events without valve float at 6200 RPM.

Closed Loop Throttle Body Dyno Output

Dyno tests confirm this big block generates 621 brake horsepower at 5800 RPM and 615 lb-ft torque at 4500 RPM across an aggressive 2500 to 6200 RPM operating band. Cam duration measures 244 degrees intake and 252 degrees exhaust at 0.050 inch lift, producing 0.612 inch intake and 0.625 inch exhaust lift. The engine draws 11 in-Hg vacuum at 950 RPM on 93 octane fuel, maintaining 55 to 70 PSI hot oil pressure.

Subframe Clearance Transmission Alignment Specs

Standard big block Chevrolet dimensions drop straight into Camaro, Chevelle, and C10 crossmember perches without frame modifications. The crankshaft utilizes an internal neutral balance flexplate or flywheel matched to standard GM transmission bellhousings. Aluminum heads clear standard aftermarket long tube headers, while the deep sump pan clears intermediate steering linkages.

Electronic Sensor Pre Lube Start Protocols

Pre prime the engine oiling channels with high zinc break in oil using an oil pump drive tool prior to startup. This competition crate engine is not engineered for marine bilge setups, forced induction boost exceeding six PSI on stock ring end gaps, or unmetered nitrous oxide systems.

• Drain break in oil and replace the spin on lube filter after the first 500 operating miles.
• Perform regular motor oil changes every 3000 miles or six months with high zinc synthetic oil.
• Examine high pressure EFI fuel lines, electrical connections, and oxygen sensor fittings every 6000 street miles.

Factory Limited Warranty Shipped Manifest

Protection includes a 30-Month / 50,000-Mile factory limited warranty guarding against defective components. The shipment crate contains the assembled long block, EFI throttle body, ECU wiring harness, handheld controller, distributor, spark wires, oil pan, valve covers, and certified dynamometer test sheet.