12605117 - GM SBC 350 4-bolt Short Block
This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.
12605117 - New from GM performance parts, Partial engine assembly used with GM 10067353 (Universal 350 & 12499529 (290 HP 350) Built from all new parts, assembly includes:
- Cast iron 4 bolt main block with 2 piece rear main seal- Non factory roller compatable
- Nodular iron crankshaft
- Powdered metal connecting rods
- Dished aluminum pistons (12cc dish)
- Brass freeze plugs
- Cam bearings
- Can be used in marine applications
- Provision for mechanical fuel pump
- Requires pre-1986 oil pan
- Note: Oil Pump Is Not Included
When used with 76cc heads compression ratio will be 8.5:1
When used with 64cc heads compression ratio will be 9.6:1
When used with 62cc heads compression ratio will be 9.8:1
When used with 58cc heads compression ratio will be 10.3:1
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