50 State Legal Replacement 1989-1995 - GM BB Compatible 454 c.i. Engine - Long Block
50 State Legal Replacement 1989-1995 - GM BB Compatible 454 c.i. Engine - Long Block
50 State Legal Replacement 1989-1995 - GM BB Compatible 454 c.i. Engine - Long Block
50 State Legal Replacement 1989-1995 - GM BB Compatible 454 c.i. Engine - Long Block
50 State Legal Replacement 1989-1995 - GM BB Compatible 454 c.i. Engine - Long Block

50 State Legal Replacement 1989-1995 - GM BB Compatible 454 c.i. Engine - Long Block

SKU: G4548995

50 State Legal Replacement 1989-1995 - GM BB Compatible 454 c.i. Engine - Long Block

SKU: G4548995

HP & Torque: OEM

Cylinder Heads: Cast Iron

Compression Ratio: OEM

Camshaft: Flat Tappet - .409 Intake / .442 Exhaust Lift and 193 Intake / 203 Exhaust Duration @ .050

Pistons: Hypereutectic

Crankshaft: Steel Crank - 4.000" Stroke and 6.135" Rods

Regular price $8,499.00
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Description:

This engine is designed and manufactured to factory specs for the specified vehicles below. It's manufactured using tighter machining tolerances, higher quality components, and finer balancing of the rotating assembly to make this engine better than the original while still meeting the description of a “replacement” engine.

FITS Various 1989-1995 Chevy / GMC Vans Originally equipped with a 7.4L Engine. See application list below to confirm fitment.

View the Application List HERE

Block:

  • NEW BluePrint Cast Iron Block, 454 BBC
  • Manufactured and Machined in the USA!
  • 4-Bolt Main
  • 4.000" Stroke,
  • 1-Piece Rear Main Seal
  • Mech fuel pump provision: Yes
  • Standard Deck

Rotating Assembly:

  • New BluePrint Cast steel crankshaft
  • 4.000" Stroke  4.250" Bore
  • OEM type 6.135" connecting rods w/ 150,000 psi bolts
  • OEM spec pistons
  • External

Cylinder Heads:

  • Iron heads - 3/8 accessory bolt holes on BOTH HEADS

Cam Specs:

  • Cam Type: Flat Tappet
  • OEM spec per listed vehicles

Ignition Timing:

  • OEM Specifications

Also Includes:

  • New valve covers, oil pan and timing cover

Notes:

  • Designed as factory replacement long block for specified vehicles and year ranges, using OEM specification parts. Customer to re-use existing intake manifold, ecu (if equipped), exhaust, fuel system etc. Modification or replacement of provided tinware, and minor accommodations such as dipstick location may be required. 
  • Specifically designed as an OEM spec engine to meet emissions requirements of the specified vehicles, to meet the criteria of "replacement engine" in all 50 states. 
  • This engine has 3/8 accessory mounting bolt holes on BOTH HEADS. if your engine has 7/16 bolt holes you will need to source new mounting bolts/possibly sleeve down accessory bracket holes. 
  • Must confirm fitment with application list above. 
  • Features External 42.5 oz. imbalance. Recommend GM flywheel 14096987, or TCI flex plate 399973.

Part Number: G4548995

Fuel Delivery Type: OEM

Spark Plug: ACDELCO CR43TS

Spark Plug Gap: .035"

Harmonic Balancer: Weighted, 8" diameter

Flexplate/Flywheel: Weighted

Stall Converter: OEM

Intake Manifold: Dual plane, satin aluminum

Fuel Recommendation: 87 Octane

Timing (Initial/Total Advance): OEM controlled by ECU

Firing Order: 1,8,4,3,6,5,7,2

Recommended Break in Oil : BPP710 (Click Here)

Recommended Service Oil : BPP10W30 (Click Here) 

Recommended Oil Filter ; BPP51061 (Click Here)

Total Oil capacity with production oil pan, and Correct BPP51061 Filter : 8 Quarts

Header Partners:  Click here for our Header Partners and recommendations.

Click here to download a copy of the Installation Guide that came with your BluePrint engine.

BETTER THAN THE REST.

The satisfaction of our customers is our highest priority at BluePrint Engines. We use quality components to balance your engine's rotating assembly within two grams of spec. We dyno test your crate engine and certify that it's ready to deliver horsepower and torque.

We give your BluePrint engine the industry's best-in-class warranty for 30-months / 50,000 miles — with the extra confidence only BluePrint can provide. Our warranty applies to individual or professional installations and is fully transferable.

For a detailed overview of our warranty, click here.

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