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BluePrint Builder Series 400/500HP Standard Edition Carbureted Crate Engine/TKX Transmission Combos B400KTKX
Part Number: MLL-B400KTKX
BluePrint Builder Series 400/500HP Standard Edition Carbureted Crate Engine/TKX Transmission Combos
Engine and Transmission Combo, Builder Series 400/500HP Carbureted, TKX, Long Block, Includes Polished Finish Accessory Drive System, Chevy, 6.6L, Kit
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Estimated Ship Date: Dec 29, 2026 Would you rather pick it up?
Overview
BluePrint Builder Series 400/500HP Standard Edition Carbureted Crate Engine/TKX Transmission Combos
BluePrint's Standard Edition Builder Series combos pair engine and transmission, eliminating guesswork and making your life easier. These combos match a carbureted GM small block-compatible 400 c.i.d. engine with a TKX manual transmission enabling the production of 500 hp and 510 lb.-ft. of torque with a compression ratio of 10.3:1.
Block:
* BluePrint high-strength cast iron
* Drilled and tapped for clutch linkage
* Mechanical fuel pump provision
* Passenger side dipstick
* 4.125 in. bore
* 4-bolt main
* One-piece rear main seal
Rotating assembly:
* BluePrint forged crankshaft
* Stroke: 3.750 in.
* Forged I-beam 5.700 in. connecting rods with 150,000 psi bolts
* Forged pistons
* Internally balanced front, externally balanced rear
BluePrint aluminum cylinder heads:
* Chamber: 64cc
* 2.08 in. intake/1.60 in. exhaust valves
* 220cc intake/67cc exhaust runners
* .500 raised port vs. OEM
Camshaft:
* Hydraulic roller
* .555 in. intake/.576 in. exhaust valve lift
* 236 intake/242 exhaust duration at .050 in. of lift
* 110 degrees lobe separation angle (LSA)
Ignition timing:
* 10 to 16 degrees initial/total timing 32 to 34degrees at 3,500 rpm
TKX transmission package:
* Mcleod Super Street Pro single disc clutch
* Hydraulic throwout bearing
* Bellhousing
* Billet flywheel
* Starter
-- First gear ratio: 2.87:1
-- Second gear ratio: 1.89:1
-- Third gear ratio: 1.28:1
-- Fourth gear ratio: 1.00:1
-- Fifth gear ratio: 0.81:1
Also included:
* Holley 850cfm double pumper carburetor with manual choke
* Pro Series Ready to Run distributor
* Aluminum dual plane intake manifold
* Thermostat and thermostat housing
* Mechanical fuel pump kit
* Spark plugs and wires
* Plug wire separator
* Valve covers
* Timing cover
* Oil filter
* Oil pan
* Polished front accessory drive:
-- Reverse rotation short water pump
-- Type II power steering pump
-- Remote power steering pump reservoir
-- 140-amp one-wire alternator
-- 7B10 peanut-style air conditioning compressor
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