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Home Engines Engine and Transmission Combos BluePrint Builder Series 400/500HP Standard Edition EFI Crate Engine and 700R4 Transmission Combos B400FK700
BluePrint Builder Series 383/436HP Standard Edition Carbureted Crate Engine and 700R4 Trans Combos B383K700
BluePrint Builder Series 383/436HP Standard Edition Carbureted Crate Engine and 700R4 Trans Combos B383K700 $11,899.00
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BluePrint Builder Series 632/815HP Standard Edition EFI Crate Engine and 4L80E Transmission Combos B632FK4L8
BluePrint Builder Series 632/815HP Standard Edition EFI Crate Engine and 4L80E Transmission Combos B632FK4L8 $23,765.00

BluePrint Builder Series 400/500HP Standard Edition EFI Crate Engine and 700R4 Transmission Combos B400FK700

$15,099.00

Engine and Transmission Combo, Builder Series, 400/500HP, Standard Edition, EFI, 700R4 , Aluminum Heads, 6.6L/400, Chevy Small Block, Kit

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Category: Engine and Transmission Combos
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Description

Overview

Brand: BluePrint Engines
Manufacturer’s Part Number: B400FK700
Part Type: Engine and Transmission Combos
Product Line: BluePrint Builder Series 400/500HP Standard Edition EFI Crate Engine and 700R4 Transmission Combos
Summit Racing Part Number: MLL-B400FK700
UPC: 887753972651
Crate Engine Family: Chevy Small Block
Engine Assembly Style: Long block
Assembled: Yes
Intake Manifold Included: Yes
Carburetor Included: No
Throttle Body Included: Yes
Cylinder Heads Included: Yes
Cylinder Head Material: Cast aluminum
Distributor Included: Yes
Oil Pan Included: Yes
Valve Covers Included: Yes
Timing Cover Included: Yes
Water Pump Included: Yes
Harmonic Balancer Included: Yes
Spark Plugs Included: Yes
Spark Plug Wires Included: Yes
Flexplate Included: Yes
Flywheel Included: No
Transmission Controller Included: No
Torque Converter Included: Yes
Wiring Harness Included: Yes
Computer Included: Yes
Quantity: Sold as a kit.
Notes: Polished front accessory drive system includes water pump, alternator, power steering pump, A/C compressor and all belts and pulleys.
Special Attention: This transmission does not include a speedometer gear or sender housing. The aluminum cylinder heads on this engine feature a 0.500 in. raised exhaust port vs. OEM.

BluePrint Builder Series 400/500HP Standard Edition EFI Crate Engine and 700R4 Transmission Combos

BluePrint Builder Series 400/500HP Standard Edition EFI crate engine and 700R4 transmission combos take the guesswork out of matching up an engine and transmission for your ride. Featuring a fuel injected Chevy small block-compatible 400 (c.i.d.) engine that produces 500 horsepower, this standard edition builder series includes a polished pulley kit and 700R4 automatic transmission. The aluminum BluePrint Engines cylinder heads help produce a nice 10.3:1 compression ratio, with assistance from the hydraulic roller camshaft, forged pistons, and forged crankshaft. Altogether, this assembly produces 510 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 400/500HP Standard Edition EFI crate engine and 700R4 transmission combos.

Other product features, items, and specifications include:

Block:
* New BluePrint cast iron
* Bore is 4.125 in.
* Main caps are 4-bolt
* One-piece rear main seal
* Mechanical fuel pump provision
* Passenger side dipstick
* Drilled and tapped for clutch linkage

Rotating Assembly:
* New BluePrint forged crankshaft
* Stroke – 3.750 in.
* Forged I-beam 5.700 in. connecting rods with 150,000 psi bolts
* Forged pistons
* Internal front/external rear
* Non-weighted 8 in. harmonic balancer (BPP350)

Cylinder Heads:
* BluePrint H8103 performance models (0.500 in. raised port vs. OEM)
* Chamber – 64cc
* Valves are 2.080 in. intake and 1.600 in. exhaust
* Exhaust runners are 220cc intake and 67cc exhaust

Camshaft:
* Hydraulic roller
* Intake valve lift – 0.555 in.
* Exhaust valve lift – 0.576 in.
* Intake duration at 0.050 in. of lift – 236
* Exhaust duration at 0.050 in. of lift – 242
* Lobe separation angle (LSA) – 110 degrees

Ignition Timing
* Initial is 10-16 degrees
* Total is 32-34 degrees (at 3,500 rpm)
* Firing order is 1-8-4-3-6-5-7-2

Automatic Transmission Package:
* Complete 700R4 package
* Torque converter with 2,200 – 2,400 rpm stall
* Weighted flexplate (one-piece, RMS)
* Starter
* Due to numerous tire/rear gear combinations, this transmission does not ship with a speedometer gear or sender housing

Other Components:
* Dual plane aluminum intake manifold with satin finish
* Complete EFI system with pump kit
* Spark plugs and wires (with separators)
* Valve covers, oil pan, and timing cover
* Oil filter
* Front accessory drive with polished finish (includes A/C and power steering)
* 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.

Applications

Make: CHEVROLET
Beginning Year: 1970
Ending Year: 1980
Engine Type: V8
Engine Size: 6.6L/400
Engine Family: Chevy small block Gen I
Fuel Delivery Type: Fuel injection
Transmission: Automatic
Transmission Manufacturer Code: THM700-R4/4L60/MD8
Shipping & Delivery
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Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

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    At X Factors Motorsports, we specialize in high-performance engines, outboards, and premium automotive equipment. With expert support, fast shipping, and trusted brands, we help builders, racers, and enthusiasts power their passion — one project at a time.

    • 1204 E Yorba Linda Blvd, Placentia, CA 92870, USA
    • Phone: +1 (714) 694-3374
    • E-mail: sales@xfactorsmotorsports.com
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