PISTONS

The same race winning technology that is applied to Wiseco's Nascar piston program has been incorporated into the pistons available for junior drag engines.

All Wiseco pistons are supplied with rings, piston pin and circlips.

Series 1985

dykes "L" top ring -- 2.8mm Oil ring -- .590 comp height (4.475" conrod) -- unchromed

.155" dome thickness -- top ring .040" from top

        Part #           Bore Size            Ring Set

# 1985PS           2.5625"                2562XL

# 1985P05          2.5675"               2567XL

# 1985P1            2.5725"                2572XL       

# 1985P15          2.5775"                2577XL

# 1985P2             2.5825"               2582XL

# 1985P25          2.5875"                2587XL

# 1985P3             2.5925"               2592XL

# 1985P35          2.5975"                2597XL

# 1985P6            2.6226"                2622XL

# 1985P8            2.6425"                2642XL

# 1985P100        2.6625"                2662XL

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Series 1980

1mm top ring -- 2.8mm oil ring -- .690 comp height (4.375" conrod) -- unchromed

.210" dome thickness may be machined for custom applications -- top ring .175" from top

Part #                 Bore Size              Ring Set

# 1980PS          2.5625"                 2562XM

# 1980P05         2.5675"                 2567XM

# 1980P1           2.5725"                 2572XM

# 1980P15         2.5775"                 2577XM

# 1980P2           2.5825"                 2582XM

# 1980P25         2.5875"                 2587XM

# 1980P3           2.5925"                  2592XM

# 1980P35         2.5975"                  2597XM

# 1980P6           2.6226"                  2622XM

# 1980P8           2.6425"                  2642XM

# 1980P100       2.6625"                  2662XM

# 1980P120       2.6825"                  2682XM

# 1980P140       2.7025"                  2702XM

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Series 1982

1mm top ring -- 2.8mm oil ring -- .640 comp height (4.425" conrod) -- unchromed

.195 dome thickness may be machined for custom applications -- top ring .230" from top

Part #                    Bore size           Ring Set

# 1982P140          2.7025"             2702XM

# 1982P155          2.7175"             2717XM

# 1982P174          2.7365"             2736XM

# 1982P194          2.7565"             2756XM

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Series 1984

1mm top ring -- 2.8mm oil ring -- .690" comp height (4.375" conrod) -- unchromed

.130" dome thickness -- top ring .100" from top

Part #                  Bore Size                  Ring Set                   

# 1984PS            2.5625"                     2562XM

# 1984P05          2.5675"                     2567XM

# 1984P15         2.5775"                      2577XM

# 1984P3           2.5925"                      2592XM 

# 1984P6           2.6226"                      2622XM

# 1984P8           2.6425"                      2642XM 

# 1984P100       2.6625"                      2662XM

# 1984P120       2.6825"                      2682XM

# 1984P140       2.7025"                      2702XM

Series 1990

1mm top ring -- 2.8mm oil ring -- .565" comp height (4.500" conrod) -- unchromed

.130" dome thickness -- top ring .100" from top

Part #                   Bore Size                       Ring Set

# 1990PS            2.5625"                          2562XM

# 1990P05           2.5675"                         2567XM

# 1990P1             2.5725"                          2572XM

# 1990P15           2.5775"                          2577XM

# 1990P2              2.5825"                         2582XM

# 1990P25            2.5875"                         2587XM

# 1990P3              2.5925"                         2592XM

# 1990P35            2.5975"                         2597XM

# 1990P6              2.6225"                          2622XM

# 1990P8               2.6424"                         2642XM

# 1990P100           2.6625"                         2662XM

# 1990P120           2.6825"                         2682XM

# 1990P140           2.7025"                         2702XM    

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All pistons listed in Series 1985 -- 1980 -- 1984 -- 1990  are available in chromed type for use in aluminum bore engines -- ordered by special request only.

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# S567       Lightweight Piston Pin for all pistons above (apx.19 grams)

# 4008        Lightweight Tool Steel Piston Pin for all above pistons (apx.23 grams)

# CS13       Circlips (spiral locks) for all pistons above

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