50 State Legal Replacement 1989-1995 - GM Big Block Compatible 454 c.i. Engine - Long Block
50 State Legal Replacement 1989-1995 - GM Big Block Compatible 454 c.i. Engine - Long Block is backordered and will ship as soon as it is back in stock.
Confirm vehicle fitment
Confirm vehicle fitment
Confirm fitment before ordering. Match the year, make, model, trim, engine, drivetrain and selected options shown on this page. If any detail is unclear, search your exact vehicle or contact us before checkout.
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Shipping expectations
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What’s included
What’s included
The product description and selected variant determine what is included. Items shown in lifestyle or installation photos are not included unless they are specifically listed in the description.
50 State Legal Replacement 1989-1995 - GM Big Block Compatible 454 ...
50 State Legal Replacement 1989-1995 - GM Big Block Compatible 454 c.i. Engine - Long Block is backordered and will ship as soon as it is back in stock.
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Verify fitment, selected options, availability and included components before checkout. Secure payment options and order confirmation are provided at checkout.
Description
Description
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:
- BluePrint Engines High Strength Cast Iron Block, 454 BBC
- Manufactured and Machined in the USA!
- Mech Fuel Pump Provision: Yes
- 1-Piece Rear Main Seal
- Standard Deck
- 4.250" Bore
- 4-Bolt Main
Rotating Assembly:
- Cast Crankshaft
- 4.000" Stroke
- OEM Type 6.135" Connecting Rods w/ 150,000 PSI Bolts
- OEM Spec Pistons
- Externally Balanced Front and Rear
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:
- Timing Cover
- Valve Covers
- Oil Pan
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 BluePrint Engines flywheel 14096987 or BluePrint Engines flex plate 399973.
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