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Vehicle Info NeededSRPPART NUMBER: 867-271068
PRO SERIES 421 SBC Inverted Dome Top
$97199
Ships on 09/24/2026
Lowest Price GuaranteeSmall Block Chevy 400 23 Degree Inverted Dome Top
- PRO SERIES 421 SBC
- Inverted Dome Top
- Bore: 4.155"
- Stroke: 3.875" 421
- Rod Length: 6.000" 421
- Compression Distance: 1.062"
- Dome Volume: -16cc
- Gram Weight: 381
- Compression Ratio: 58cc 11.3, 64cc 10.6, 70cc 10.0
Footnotes - Oil Rail Support is Included
Part TypePiston
BrandSRP
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number271068
Package Qty1
Package TypeEA
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