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SEVERE DUTY ENGINE BLOCKS SMALL BLOCK CHEV
MATERIAL BORE BORE & STROKE CAM JOURNAL OD CAM PLUG CYLINDER WALL THICKNESS DECK HEIGtHT DECK THICKNESS FUEL PUMP FUEL PUMP PUSHROD FREEZE PLUGS LIFTER BORES MAIN BEARING SIZE MAIN BEARING BORE MAIN CAP BOLTS
MAIN CAP PRESS MAIN CAPS MAIN CAP REGISTER OIL SYSTEM OIL PUMP SHAFT
OIL FILTER OIL PAN REAR MAIN SEAL SERIAL NO. STARTER STUD HOLES, HEAD TIMING CHAIN / GEARS TIMING COVER TORQUE SPECS
WEIGHT
High Grade Iron Alloy 4.00” or 4.125” unfinished 4.185” x 4.000” Max Recommended( Cam Tunnel requires grooved 2.000“ O. D bearings) Standard SBC- 1.869” 2.375” dia. cup plug. 275” min at 4.185” bore 9.025”. 675” min. Mechanical Pump Provision Standard Length 10 x 1- 5 / 8 Press in cup plugs SBC. 8427”-. 8437” 2.450”( 350) 2.650”( 400)( UF blocks are ~ 0.010“ undersize) 2.649( 350), 2.849( 400) # 1 7 / 16”( 2) 3 / 8”( 2) # 2, # 3, # 4 7 / 16”( 2) 7 / 16” splayed( 2) # 5 7 / 16”( 2) 3 / 8”( 2). 005” All 5- Billet Steel 4- bolt w / splayed outer bolts on center 3 journals Deep stepped register on each side( no need for dowels) Wet Sump- Main Priority Oiling( can use dry sump) 350 main = Stock shaft(. 481” OD) 400 main = Stock shaft(. 425” OD) MUST machine aftermarket shaft Standard SBC filter, uses 2 bolt filter adapter Standard SBC oil pan 350 main- std seal / 400 main FelPro # 2909 Left front & main caps Standard SBC Blind Holes Standard SBC components Uses standard cam location SBC front covers 1-5 7 / 16” bolts- 65 ft lbs 1 & 5 3 / 8” bolts- 35 ft lbs 205 lbs at 4.00” bore
SM13100 _ 4.000” billet caps w / 350 mains SM13101 _ 3.970” billet caps w / 350 mains( UF) SM13102 _ 4.095” billet caps w / 350 mains( UF) SM13103 _ 4.116” billet caps w / 350 mains( UF) SM13104 _ 4.125” billet caps w / 350 mains SM13110 _ 4.095” billet caps w / 400 mains( UF)
SM13400 _ 4.000” billet caps w / 350 mains ** SM13404 _ 4.125” billet caps w / 350 mains **
UF = Un-finished, mains are- ~ 0.010”, Cam tunnel is- ~ 0.002”, deck is +~ 0.015 ** = Fully machined with cam bearings and freeze plugs installed.
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