SHP Chevrolet Small Block Iron Block – 4.125 In. Bore, 9.025 In. Deck

SIAMESE AND NON-SIAMESE

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Excellent upgrade or stock replacement block. Street performance, Sportsman racing.

Designed for high performance and medium duty applications, the SHP (Special High Performance) block is the ideal starting point for hot
rodders, drag racers, circle track competitors, off roaders, and high performance marine enthusiasts.

Don’t waste your valuable time sourcing, cleaning, machining and prepping a 40 year old core when you can have a brand new precision machined block with all the most desirable features for just a few dollars more.

FEATURES
• Priority main oiling system.
• Siamese cylinder bores with extra thick walls.
• Optional full water jacketed non siamese cylinder bores.
• Extra thick decks ensure reliable head gasket seal.
• Blind head bolt holes don’t go through to water jacket.
• Scalloped water jacket walls improve flow around cylinders for better cooling.
• Clearance for 3.750” stroke with steel rods.
• Splayed outer bolts on middle main bearing caps.
• Non siamese water blocks have 2bolt mains on all 5 locations.
• Uses + .300” tall stock 8795 roller lifters.
• Provisions for OE stock roller lifters & cams.
• Uses 19811985 stock style oil pan & passenger side dipstick.
• Uses stock stamped steel or plastic timing cover.
• All OE bolt holes for starter, clutch ball, etc.
• Oil restrictors available through aftermarket resources.
• Parts kit sold separately (PN 32000013)

SHP SPECS
Material: Class 30 Grey Iron
Deck Height: 9.025”
Cylinder Bores 4.000” or 4.125”
Siamesed: 4.165” (max)
Non Siamesed: 4.000” to 4.060” (max)
Main Bearings: 350 or 400
Main Caps: Ductile Iron 4 bolt #2, 3 & 4, 2bolt #1 & 5
Cam Location: Stock
Lifter Bores: Stock 87-95 style
Freeze Plugs: Press fit
Rear Seal: 1 or 2 Piece
Weight: 170-178 lbs.

31161111 SHP Block 2Piece Ductile 350 9.025" 4.000"
31161211 SHP Block 2Piece Ductile 350 9.025" 4.125"
31161111L SHP Block 1Piece* Ductile 350 9.025" 4.000"
31161211L SHP Block 1Piece* Ductile 350 9.025" 4.125"
31162111 SHP Block 2Piece Ductile 400 9.025" 4.000"
31162211 SHP Block 2Piece Ductile 400 9.025" 4.125"

31171111L SHP Block Non Siamese 1Piece* 2Bolt Ductile 350 9.025” 4.000”