BluePrint Builder Series 632/815HP Blackout Reaper EFI Crate Engine and 4L80E Transmission Combos B632FKB4L8X

Overview

BluePrint Builder Series 632/815HP Blackout Reaper EFI Crate Engine and 4L80E Transmission Combos

BluePrint Builder Series 632/815HP Blackout Reaper EFI crate engine and 4L80E transmission combos take the guesswork out of matching up an engine and transmission for your ride. Featuring a fuel injected Chevy big block-compatible 632 (c.i.d.) engine that produces 815 horsepower, this Reaper edition builder series includes a black pulley kit and 4L80E automatic transmission. The aluminum BluePrint Engines cylinder heads help produce a nice 11.0:1 compression ratio, with assistance from the hydraulic roller camshaft, forged pistons, and forged crankshaft. Altogether, this assembly produces 775 lbs.-ft. of torque. When you need or want a new powertrain for your GM ride, go with the authority in crate engines and their BluePrint Builder Series 632/815HP Blackout Reaper edition EFI crate engine and 4L80E transmission combos.

Other product features, items, and specifications include:

Block:
* New BluePrint cast iron
* Bore is 4.600 in.
* Main caps are 4-bolt
* One-piece rear main seal
* Mechanical fuel pump provision
* Tall deck (approximately 0.400 in. taller and wider than OEM block)

Rotating Assembly:
* New BluePrint forged crankshaft
* Stroke – 4.750 in.
* Forged H-beam 6.635 in. connecting rods
* Forged pistons
* Internal balance
* Non-weighted harmonic balancer

Aluminum Cylinder Heads:
* BluePrint PS8012 performance models (0.300 in. raised exhaust port vs. OEM)
* Chamber – 119cc
* Valves are 2.300 in. intake and 1.880 in. exhaust
* Exhaust runners are 358cc intake and 125cc exhaust
* Builder must verify clearance of exhaust, shift linkage, steering components, etc. before ordering

Camshaft:
* Hydraulic roller
* Intake valve lift – 0.698 in.
* Exhaust valve lift – 0.698 in.
* Intake duration at 0.050 in. of lift – 272
* Exhaust duration at 0.050 in. of lift – 282
* Lobe separation angle (LSA) – 110 degrees

Ignition Timing
* Initial is 10-16 degrees (16-20 degrees for Dominator-style carburetors)
* Total is 32-34 degrees (by 2,500 rpm for Dominator-style carburetors)
* Firing order is 1-8-4-3-6-5-7-2

Automatic Transmission Package:
* Complete 4L80E package with electronic controller (lockup capability)
* Torque converter with 3,800–4,200 rpm stall
* Non-weighted flexplate
* Starter
* Gear ratios are 2.482:1 (first), 1.482:1 (second), 1.000:1 (third), 0.750:1 (fourth), 2.077:1 (reverse)

Other Components:
* Single plane aluminum intake manifold with satin finish
* Complete EFI system (1,250 cfm) with Aeromotive A1000 fuel pump
* Valve covers, oil pan, and timing cover
* Billet front accessory drive with black finish (includes alternator, A/C, power steering, water pump, pulleys, and belts)
* BPP7938 NGK BKR5E spark plugs (0.750 in. reach, 14mm thread pitch, 5/8 in. hex, 0.035 in. gap)
* Thermostat and housing

Note: Recommended fuel is 91 octane. Recommended oil is BPP710. Not designed for EGR-compatibility.

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