VPW Engine Block- SB Chev

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When building a mild Small-Block performance engine, blocks from VPW offer strength,accuracy and peace
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of mind that can’t be assured in a rebuilt core.And, unlike so many of the used cores, nearly all of ours feature four-bolt main caps for
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extra strength. Each cylinder block is machined to production-spec tolerances and is manufactured to the exact specifications of
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pre-1986 or 1986-and-later engines

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SBC Iron Small Block
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Deck Height …………………………………………….. 9.025″
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Bore …………………………………………….. 4.125″ unfinished
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Main Bearing Size …………………………………………….. 350 (2.45″) 400 (2.65″)
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Weight …………………………………………….. 205 lbs
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Largest Recommended Bore …………………………..…… 4.185″
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Camshaft Bearing Diameter …………………………..…… SBC – 2.00″
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Camshaft Position …………………………………………… Standard SBC
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Cylinder Wall Thickness, min. …………………………..…… .275″ @ 4.185″ bore thrust side
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Deck Thickness, min …………………………………………… .675″
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Torque Specs – Main Caps 1 – 4 7/16″ bolts 65 ft lbs
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5 1/2″ bolts 100 ft lbs
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Material: Iron
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Bore & stroke: 4.185” x 3.875” max recommended
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Cam bearing bore ID: SBC – 2.00”
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Cam bearings:
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Special coated, grooved, w/3 oil holes (Not included)
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Cam Bearing O.S. + .010”, +.020”, +.030”
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Cam bearing press: .002”
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Cam journal OD: Standard SBC – 1.869”
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Cam Plug: 2.375” dia. cup plug
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Cylinder Wall Thickness: .275” min @ 4.185” bore
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Deck Thickness: .675” min.
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Fuel Pump: Mechanical pump provision
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Fuel Pump Pushrod: Standard Length
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Freeze Plugs: Stock press in
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Lifter Bores: SBC .8427” – .8437”
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Main bearing size: 2.450” (350) 2.650” (400)
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Main bearing bore:
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(350) 2.6405 – 2.6415 (400) 2.8405 – 2.8415
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Main Cap Bolts: #1 7/16” (2)
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#2, #3, #4 7/16” (2) 7/16” splayed (2)
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#5 1/2” (2)
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Main caps: Ductile Iron – 4 bolt, center 3
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Main cap register: Deep stepped register on each side (no need for dowels)
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Oil system: Wet Sump – Main Priority Oiling (can use dry sump)
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Oil Pump shaft: 350 main = Stock shaft (.481” OD)
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400 main = Stock shaft (.425”OD) MUST machine aftermarket shaft
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Oil Filter: Standard SBC filter, uses 2 bolt filter adapter
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Oil Pan: Standard SBC oil pan
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Rear Main Seal 350 main – std seal / 400 main – FelPro# 2909
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Serial No. Left front & main caps
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Starter: Standard SBC
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Stud holes, Head: Blind holes
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Timing chain/gears Standard SBC components
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Timing Cover: Accepts stock cover
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Torque Specs: #1 – 4 7/16” bolts – 65 ft lbs
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#5 1/2” bolts – 100 ft lbs
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Weight: 205 lbs @ 4.00” bore

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