SB Chevy 4340 Forged Steel IMCA-Legal Crankshaft MAN190310
SB Chevy Sportmaster ® Connecting Rods
Rods are CNC-machined from quality 4340 forgings. Held to exacting tolerances for bore size, taper, and EHQGWZLVWHDFKURGLVSUR¿OHGDURXQGWKHHQWLUHEHDP WRUHPRYHVWUHVVULVHUVUHVXOWLQJLQDYHU\OLJKW¿QLVKHG piece. After machining, the entire rod, including the bolt pad, is shot-peened for durability. ARP8740 3/8" dia. cap screws (190,000 PSI) are used exclu- sively, as are premium Ampco 18 bushings in the pin end. Shipped in weight-matched (±1.5 grams) sets of 8 only. Perfect for Pro Stock, Late Model, and Sportsman racers with engines up to 550 horsepower @ 8,000 RPM. Listed rods have a big end width of .940" and a pin end width of .980". Sold in sets of eight.
Premium-quality 4340 forged steel crankshaft is a non-twist forging acceptable for use in popular IMCA Hobby Stock and Sport Mod classes. Designed for popular small Chevy internal- ly balanced engines with a 3.480" stroke and two-piece rear main seal, this lightweight crankshaft has been heat-treated, VWUHVVUHOLHYHGVKRWSHHQHGQLWULGHGDQGPDJQDÀX[HG&UDQN also features micro-polished, large-radius journals and requires narrowed rod bearings. Weight SB Chevy, 2-Pc. Rear Main Seal 3.480" 5.700" 2.450" 2.100" 48-50 lbs. Notes: Crankshaft is for internally balanced, 2-piece rear main seal applica- tions and requires narrowed, high-performance rod bearings. Two center rod journals are not gun drilled. Application Stroke Rod Length Main Journal Rod Journal
Gram Weight
Part No.
Description
Center-to-Center
Big End Bore Pin Bore
MAN14101-8 Stock Length, Large Journal MAN14103-8 .300" Longer, Large Journal
5.700"
2.225" .9281" 555
6.000"
2.225" .9281" 578
SB Chevy Superior Head Bolts High-quality, 180,000 PSI
fasteners are longer than stock and have an underhead radius to prevent premature stretch and failure. Bolts are or use with MAN42102 head bolt washers. The 1/2" hex head allows greater wrenchability. Part No. Description MAN42171 SB Chevy Superior Head Bolts, 17 (Services 1 Cyl. Head) MAN42102 SB Chevy Head Bolt Washers, Set of 34 (Services 2 Cyl. Heads) Semi-Syn Motor Oils High-performance oil is a complex blend of highly UH¿QHGEDVHVWRFNVDQGFDUHIXOO\VHOHFWHGV\QWKHWLF esters that protects critical engine components beyond conventional oils. Semi-Syn is a fully formulated race oil that is compatible with petro- leum or synthetic engine oils. High-zinc/phos- SKRURXVIRUPXODLVLGHDOIRUXVHLQÀDWWDSSHWRU roller camshaft engines. Sold in 1-quart bottles or in cases.
Extreme-Pressure Lube #3 MAN40177 Primarily used as a fastener lubricant, prod- uct is preferred by many top engine builders. 4-oz. tube.
RS Series Motor Oils )XOOV\QWKHWLFWULSOHHVWHUUDFHJUDGHRLO incorporates an industry-leading additive system that provides both maximum performance and increased protection. Advanced formula uses special anti-wear/extreme-pressure additives to provide superior engine protection, even under extreme loads and peak temperatures. Sold in 1-quart bottles or in cases. Not recommended for street use.
1-Qt. Bottle
1 Case (12/1-Qt. Bottles
1-Gallon Jug
1 Case (4/1-Gallon Jugs)
Description
10W-40 MAX39-34901BS MAX39-34901B MAX39-349128BS MAX39-349128B 20W-50 MAX39-35901BS MAX39-35901B MAX39-359128BS MAX39-359128B Performance Motor Oils High-performance petroleum oil is formulated using a technologically advanced additive package that
1-Qt. Bottle
1 Case (12/1-Qt. Bottles
1-Gallon Jug
1 Case (4/1-Gallon Jugs)
Description
0W-10 MAX39-13901S MAX39-13901 0W-20 MAX39-14901S MAX39-14901 5W-20 MAX39-04901S MAX39-04901
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LVFRPELQHGZLWKDEOHQGRIKLJKO\UH¿QHGSHWUR - leum base stocks. Lubricant resists mechanical breakdown and viscosity loss, while reducing wear on lifters, cams, and bearings. High-zinc/ SKRVSKRURXVIRUPXODLVLGHDOIRUXVHLQÀDWWDS - pet or roller camshaft engines. Sold in 1-quart bottles or in cases.
— 5W-30 MAX39-91901S MAX39-91901 MAX39-919128S MAX39-919128 10W-30 MAX39-01901S MAX39-01901 MAX39-019128S MAX39-019128 10W-40 MAX39-16901S MAX39-16901 MAX39-169128S MAX39-169128 15W-50 MAX39-32901S MAX39-32901 MAX39-329128S MAX39-329128
1-Qt. Bottle
1 Case (12/1-Qt. Bottles
1-Gallon Jug
1 Case (4/1-Gallon Jugs)
Description
10W-40 MAX39-34901S MAX39-34901 20W-50 MAX39-35901S MAX39-35901
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— MAX39-359128
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CIRCLE TRACK 2021-22
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