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SMALL BLOCK CHEVY
BIG BLOCK CHEVY
FORD
MOPAR
BUICK
NHRA
BIG BLOCK 427 APBA DOME

Designed specifically for use with APBA-approved Dart Pro-1 cylinder heads, these pistons laser engraved with the APBA logo and part number.

Includes:
Pin # 990-2930-15-51S (150g)
Double Spiro Locks (# 990-042-CS)
Double Pin Oilers
Accumulator Grooves

BBC 427 APBA
Std Bore: 4.250
Ring package designed for: 1/16, 1/16, 3/16 Rings

 Tech and Installation Tips
 Valve Relief Diagram
Part # CID Bore Stroke Rod
Lgth.
Comp.
Ht.
Head Cubic Centimeters
112cc 118cc 124cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
262808 427 4.250 3.766 6.135 1.765 13.2 12.2 11.4 50 NEW STD J100F8-4250-5
262809 433 4.280 3.766 6.135 1.765 13.3 12.4 11.6 50 NEW 0.030 J100F8-4280-5
265366 440 4.310 3.766 6.135 1.765 13.5 12.5 11.7 50 NEW 0.060 J100F8-4310-5

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