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BluePrint Builder Series 632/815HP Standard Edition Carbureted Crate Engine and 4L80E Trans Combos B632K4L8
Part Number: MLL-B632K4L8
BluePrint Builder Series 632/815HP Standard Edition Carbureted Crate Engine and 4L80E Trans Combos
632 c.i. Standard Edition Builder Series, Carbureted, 4L80E Automatic Transmission /w Polished Pulley Kit. Incl. 30 month/50,000 warranty & Dyno
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Estimated Ship Date: Nov 3, 2026
Overview
BluePrint Builder Series 632/815HP Standard Edition Carbureted Crate Engine and 4L80E Trans Combos
BluePrint Standard Edition Builder Series combos pair engine and transmission, eliminating guesswork, making it easier to gain the performance you desire. These combos match a carbureted GM big block-compatible 632 c.i.d. Pro Series engine with a 4L80E automatic transmission enabling the production of an outstanding 815 hp and 775 lb.-ft. of torque with a compression ratio of 11:1.
BluePrint high-strength cast iron engine block:
* 4.600 in. bore
* 4-bolt main
* One-piece rear main seal
* Tall deck (cylinder deck is approximately .400 taller/wider than OEM block)
* Mechanical fuel pump provision
Rotating assembly:
* BluePrint forged crankshaft
* Stroke: 4.750 in.
* Forged H-beam 6.635 in. connecting rods
* Forged pistons
* Internally balanced
BluePrint aluminum cylinder heads:
* 119cc chamber
* 2.30 in. intake/1.88 in. exhaust valves
* 358cc intake/125cc exhaust runners
* .300 in. raised exhaust port vs. an OEM casting
Hydraulic roller camshaft:
* .698 in. intake/.698 in. exhaust valve lift
* 272 intake/282 exhaust duration at .050 in. of lift
* 110 degrees lobe separation angle (LSA)
4L80E automatic transmission package:
* Electronic transmission controller
* Lockup capability
* 3,800+ stall torque converter
* Flexplate
* Starter
Also included:
* Holley 1250cfm carburetor
* Pro Series Ready Run distributor
* Electric fuel pump
* Intake manifold
* Harmonic balancer
* Thermostat and thermostat housing
* Valve covers
* Timing cover
* Oil pan
* Polished front pulley kit:
-- Reverse rotation short water pump
-- Type II power steering pump with remote reservoir
-- 140-amp one-wire alternator
-- Peanut-style air conditioning compressor
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