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

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: