Index > Engine Packages |  |
1971-1990 Jeep 4.2L/258ci / 235+ HP Long Block
1987-2006 Jeep 4.0L / 235+ HP Long Block
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* Fully Balanced & Blueprinted Assembly Peak Horsepower: 235 bhp @ 5000 rpm
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No Core Required or Charge - Complete Engine
AMC/Jeep 4.0 , 4.2L/258ci / 235+ HP Long Block - Specs. |
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| Block: | Chemically cleaned, Oven Baked, then Stainless-Steel Airless Shot Peened to Remove all remaining Paint & Rust. Visually Inspected, and Fully Magnafluxed to check for cracks. Cylinder Bores Blueprint Bored and Decks Index Squared to the Mains, w/ a Rottler F68A CNC Machining Center. Cynders then Honed with torque-plates, w/ a Sunnen CV-616 Automatic Cylinder Hone Machine. Block is then de-burred, Modifying Oiling Galleys when needed, and then pressure washed. Durabond one-piece cam bearings and Pioneer Brass Freeze plugs installed, now ready for Assembly in our 'Clean Room'. |
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| Crank: | Airless Shot Peened for strength, Performance Index Ground Factory Crankshaft, Micro Polished, with Chamfered Oil Holes. |
| Rods: | Factory Steel Connecting Rods, Airless Shot Peened for Strength, Resized with New ARP Performance Rod Bolts |
| Pistons: | Federal Mogul |
| Rings: | Speed-Pro Plasma-Moly |
| Bearings: | Clevite or Federal Mogul Performance Main and Rod Bearings, Durabond One-Piece Cam Bearings |
| Core Plugs: | Pioneer Brass Freeze Plugs |
| Heads: | Factory Cast Iron, Combustion Chamber: 62cc, Intake Runner: 155cc, Intake Valves: SBI Performance Exhaust Valves: SBI Performance Valve Guides: K-Line "Bronze Bullet" Liners Machining: Performance Multi-Angle Valve Job done on Precision Serdi 104. Custom Porting Available. |
| Lifters: | Comp Cams Hydraulic |
| Cam: | COMP. CAMS HYDRAULIC, Operating Range: 1000-5200 rpm Idle Quality: Good Duration: Intake: 210° @ .050" Exhaust: 218° @ .050" Lift: Intake: .477" Exhaust: .493" Lobe Separation: 111°° |
| Pushrods: | SBI Performance |
| Valve Springs: | Comp Cams |
| Valve Retainer & Locks: | Comp Cams Steel |
| Rocker Arms: | SBI Performance |
| Timing Set: | Cloyes Performance |
| Oiling System: | Custom Blueprinted Melling High Volume Pump, Pickup Tube and HD Drive |
| Oil Pan: | Factory Reconditioned |
| Balancer: | Professional Products Performance Unit, w/ Degree Marks |
| Gasket Set: | Fel-Pro Performance |
| Head Bolts: | SBI Performance |
| Rod Bolts: | ARP Performance |
| Balancing: | Computer Spun Balanced to within 1 Gram, using 'CWT Industries' Multi-Bal 5000 |
Brand Names May Vary. Prices Subject To Change Without Notice.
all Eligible Returns Are Subject To 15% Processing & Restocking Fee.
