Spotts Performance-blocks

Click here for the IA2 Engine Block

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NEW 505 - 535 CRATE MOTORS

WITH CAST OR FORGED CRANKS

WE ALSO BUILD 461-495 FACTORY BLOCK CRATE ENGINES

WITH CAST OR FORGED CRANKS

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ALLPONTIAC IA11 BLOCK

**Click picture on right for more views of block**

$2995.00 Standard Deck

Part# EB1

It has siamesed cylinder bores that allow up to 4.375 bore, possibly even 4.400. .625 deck thickness for strength and rigidity. Splayed four bolt mains on center three caps. Provisions for external oiling of front main. Lifter bores incorporated to use "corporate" lifters. Bottom of block to pan rail thicker for strength and pan seal. Thicker & stronger head bolt bosses. Special cooling features. Lifter galley strenghtened. Uses standard Pontiac engine mounts. Thicker main webs. Accepts all stock and aftermarket Pontiac components. Cylinders notched for up to 4.75 stroke. Cam tunnel can be bored for bigger size. Available in tall deck design for up to 619 cid.

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Used 400 blocks (bare w/ 2 bolt caps) - baked, shot peened,(completely cleaned) checked for cracks (specify 2 or 3 bolt mounting)- $400.00

Used 455 blocks (bare w/ 2 bolt caps) - baked, shot peened,(completely cleaned) checked for cracks- $600.00

Block options

de-burred - flashing removed - 4 bolt main upgrade - line honed saddles - ARP stud upgrade - filled w/ hard block - o-ringed - new freeze plugs/oil plugs and cam bearings installed - tapped and oil restrictors installed - Mega-brace installed - 400 block clearanced for stroker crank - Bore-honed w/ torque plate - square decked - dip stick hole plugged - complete assemblies -