Chevrolet and GM Performance Parts - Bow Tie Sportsman 350 Main Size Bare Block

Chevrolet - BOW TIE SPORTSMAN 350 MAIN SIZE BARE BLOCK

This cast iron block is fully CNC machined from the H-D 10051184 casting.

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Updated 09-08-2004.

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BOW TIE SMALL-BLOCK BARE BLOCK NAVIGATION

Street 10051181	Street 10051183	Amateur Comp. 10185047	Sportsman 12480047	Sportsman 12480049
Racing 24502501	Racing 24502503	Racing 24502525	SB2 / SB2.2 24502600	Racing 24502650
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DESCRIPTION

Bow Tie Sportsman
350 Main Size Bare Block

P/N 12480047
This cast iron block is fully CNC machined from the H-D 10051184 casting. It has siamesed cylinder walls, cast nodular caps, four bolts on all five main caps; the outer bolts on the three center main caps are splayed 20 degrees. Grade 8 bolts secure the caps. It features priority main oiling and 9.025” deck height. The blocks come finished bored at 3.980” and the maximum recommended bore is 4.150”. This block freatures a two-piece rear main seal; “350” main size (2.45”). It features lifter bore heights (.842”) same as P/N 24502503.
Technical Notes: It may be necessary to clearance top of lifter bores with some roller lifters. The block requires 2” O.D. cam bearings at all five locations (P/N 12370835 set).

SPECIFICATIONS:

Block Material:
Cylinder Wall Type:
Cylinder Deck Height:
Cylinder Bore Range:
No. Bearing Cap Bolts:
Cap Bolt Orientation:
Bearing Cap Type:

Cast Iron
Siamesed
9.025”
3.980”-4.150”
4
Splayed 20°
Cast Nodular

Crankshaft Journal Dia.:
Oil Sump Type:
Crankshaft Seal Type:
Design Max. Stroke:
Weight (lbs. - bare):
Intended Max. Hp @ RPM:
Intended Usage:

2.45”
N/A
2 piece
N/A
N/A
N/A
N/A