These big block pistons are compatible with forced induction, ... ) Rod Length Block Height Cubic Inches Bore Size Compression Distance Stroke Gram ... Oversize Part Number Ring Prefix + Bore Size Below 110cc Head Cubic Centimeters ... Compression Ratio BIG BLOCK FLAT TOP 18 PHONE: 714-898-9763 ... Dome Volume 118cc 124cc 427/454 STD BORE 4.250 502 BBC 4.466 1/16, 1/16, 3/16 ... 9.8 9.2 8.9 -3.0 654 B .134 131385 4600-5* 496 4.310 4.250 6.385 9.780 1.270 ... 10.3 9.8 9.4 -3.0 667 B .134 131390 4600-5* 460 4.280 4.000 6.385 9.780 1.395 ... is Included *The Ring Prefix for 4.600 bore is J100L8, not J100F8 ** The Ring ... Prefix for 4.560 bore is J100S8, not J100F8 ...
: 714-898-9763 FAX: 714-893-8297 These big block pistons are compatible with ... ) Double spiro locks (#990-042-CS) BIG BLOCK INVERTED DOME Rod Length Block ... Height Cubic Inches Bore Size Compression Distance Stroke Gram ... Oversize Part Number Ring Prefix + Bore Size Below 110cc Head Cubic Centimeters ... Dome Volume 118cc 124cc 427/454 STD BORE 4.250 502 BBC 4.466 1/16, 1/16, 3/16 ... 9.2 8.8 8.5 -20.0 629 B .134 181993 4600-5* 467 4.310 4.000 6.385 9.780 1.395 ... 8.3 7.9 7.7 -28.0 641 B .134 181997 4600-5* 540 4.500 4.250 6.135 9.780 1.520 ... 9.2 8.8 8.5 -20.0 678 .134 182001 4600-5* 509 4.500 4.000 6.135 9.780 1.645 ... Rail Support is Included 427/454 STD BORE 4.250 502 BBC 4.466 TALL DECK 10.200 ... 8.3 7.9 7.7 -28.0 641 B .134 181997 4600-5* Foot Notes: B=Oil Rail Support is ...