SMALL BLOCK CHEVY
BIG BLOCK CHEVY
FORD
MOPAR
BUICK
NHRA
BIG BLOCK TALL DECK INV. DOME

Same pistons as above with compression height figured using 10.180" "tall deck" height with zero deck clearance. Precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings.

Includes:
Pin #990-2930-18-51S (174g)
Double spiro locks (#990-042-CS)

Big Block Chevy Inverted Dome Series
Std Bore: 427/454 = 4.250, 502 BBC = 4.466
Ring package designed for: 1/16, 1/16, 3/16 Rings
 Tech and Installation Tips
 Valve Relief Diagram
Part # Cubic
Inches		 Bore Stroke Rod
Length		 Block
Height		 Compression
Distance
Head Cubic Centimeters
110cc 118cc 124cc
Compression Ratio
Dome
Volume		 Gram
Weight		 Footnote Oversize
131670 525 4.310 4.500 6.535 10.180 1.395 9.0 8.6 8.2 -14.5 636 B 0.060
181994 572 4.500 4.500 6.535 10.180 1.395 8.9 8.5 8.2 -28.0 612 B 0.034
181995 580 4.530 4.500 6.535 10.180 1.395 9.0 8.6 8.3 -28.0 630 B 0.064
181996 587 4.560 4.500 6.535 10.180 1.395 9.1 8.7 8.4 -28.0 627 B 0.094
181997 598 4.600 4.500 6.535 10.180 1.395 9.2 8.8 8.5 -28.0 644 B 0.134


- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.

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