Page 375 - 2018 Racecar Engineering Drag Racing Parts and Accessories Catalog

SB Chevy 350/400 Extreme Duty BB Chevy Open Chamber
23° Inverted Dome Pistons Dome GP Pistons
For nitrous or forced induction, inverted The top choice for drag racing, big block
dome pistons have .310" pocket depths and Chevy pistons are engineered for use with
accept 1/16" top, 1/16" second and 3/16" open chamber cylinder heads, use a high
oil rings. Sets of eight include wrist pins and compression dome design and feature verti-
double spiral locks. cal gas ports for maximized combustion sealing. Pistons accept
Rod Comp. Dome .043" top, .043" second and 3mm oil rings. Sets of eight include
Part No. Bore Stroke Length Ratio Volume wrist pins and double spiro locks.
350 Pistons Rod Comp. Dome
JEP131636 4.030" 3.480" 5.700" 8.7:1 -22cc Part No. Bore Stroke Length Ratio Volume
400 Pistons JEP243330 4.560" 4.250" 6.535" 14.6:1 +46cc
JEP170818 4.155" 3.750" 6.000" 9.2:1 -28cc JEP243331 4.600" 4.250" 6.535" 14.8:1 +46cc
Notes: Compression ratios are based on a 64cc combustion chamber. The JEP243332 4.610" 4.250" 6.535" 14.9:1 +46cc
350 pistons listed above fit both 3.480" and 3.500" strokes.
BB Chevy Open Chamber
SB Chevy 350/400 23° Dome Pistons Dome Pistons
High compression pistons are compatible Ideal for drag racing, open chamber dome
with most stock, aftermarket, and angle milled pistons accept 1/16" top, 1/16" second and
cylinder heads. Valve reliefs accommodate 3/16" oil rings. Not compatible with Edelbrock
oversized valves and high lift cams. Requires #6040, #6045 or #6055 cylinder heads.
1/16" top, 1/16" second and 3/16" oil rings. Rod Comp. Dome
Sold in sets of eight with .927" x 2.750" (130 Part No. Bore Stroke Length Ratio Volume
grams) wrist pins and double spiral locks. JEP258243 4.310" 4.250" 6.385" 13.0:1 43cc
JEP258238 4.500" 4.250" 6.385" 14.3:1 45cc
Rod Comp. Dome
Part No. Bore Stroke Length Ratio Volume JEP258239 4.530" 4.250" 6.385" 14.5:1 45cc
350 Pistons JEP258240 4.560" 4.250" 6.385" 14.6:1 45cc
JEP182012 4.030" 3.500" 6.000" 12.8:1 +13cc Notes: Compression ratios are based on a 118cc combustion chamber.
JEP182014 4.040" 3.500" 6.000" 13.2:1 +13cc
JEP182015 4.060" 3.500" 6.000" 13.2:1 +13cc
JEP182005 4.030" 3.750" 6.000" 13.4:1 +9.5cc Spiro And Wire Locks
JEP182006 4.040” 3.750” 6.000” 13.7:1 +11cc Sold each.
400 Pistons Part No. Description Dia. Thickness Material
JEP182067 4.125" 3.500" 6.000" 13.8:1 +13cc
JEP182053 4.125" 3.750" 6.000" 13.1:1 +5.6cc JEP927-042-CS Spiro Lock .927" .042" Carbon Steel
JEP182058 4.125" 3.750" 6.000" 14.1:1 +10.8cc JEP927-073-AS Spiro Lock .927" .073" Alloy
JEP182033 4.125" 3.875" 6.000" 13.5:1 +5.6cc JEP927-073-MW Wire Lock .927" .073" Chrome Silicon
JEP182038 4.125" 3.875" 6.000" 14.5:1 +10.8cc JEP990-042-CS Spiro Lock .990" .042" Carbon Steel
JEP182024 4.125" 4.000" 6.000" 13.5:1 +3cc
JEP182069 4.155" 3.500" 6.000" 13.8:1 +13cc Pro Seal Premium
JEP182061 4.155" 3.750" 6.000" 13.7:1 +8cc
JEP182036 4.155" 3.875" 6.000" 13.2:1 +3cc Race Series Piston Rings
JEP182041 4.155" 3.875" 6.000" 14.1:1 +8cc Top compression rings are barrel
JEP182027 4.155" 4.000" 6.000" 13.5:1 +3cc shaped ductile iron with a plasma
JEP182037 4.165" 3.875" 6.000" 13.3:1 +3cc moly coating. Second rings are taper faced cast iron with a
JEP182042 4.165" 3.875" 6.000" 14.1:1 +8cc phosphate coating. Oil rings are standard tension, chrome plated
JEP182028 4.165" 4.000" 6.000" 13.5:1 +3cc
JEP207513 4.185" 4.000" 6.000" 14.8:1 +8cc carbon steel. All sets are .005" oversize, for a custom file fitting.
Notes: Compression ratios are based on a 64cc combustion chamber. All Part No. Bore Size Type Top Ring 2nd Ring Oil Ring
of the 350 pistons listed above, with the exception of JEP182005, fit both JEPJ100F8-4030-5 4.030" Moly 1/16" 1/16" 3/16"
3.480" and 3.500" strokes. JEPJ10008-4030-5* 4.030" Moly 1/16" 1/16" 3/16"
JEPJG31F8-4030-2 4.030" Carbon Steel 1.2mm 1.5mm 3mm
JEPS100S8-4030-5
BB Chevy Inverted Dome Pistons JEPJ10008-4040-5* 4.030" Moly 1/16" 1/16" 3/16"
1/16"
Moly
4.040"
3/16"
1/16"
Pistons, fully compatible with forced induc- JEPJ100F8-4040-5 4.040" Moly 1/16" 1/16" 3/16"
tion or nitrous oxide, feature an inverted dome JEPJ10008-4060-5* 4.060" Moly 1/16" 1/16" 3/16"
design for maximum efficiency and horse- JEPJ10008-4125-5* 4.125" Moly 1/16" 1/16" 3/16"
power. Fully compatible with open and closed JEPJ75008-4125-5 4.125" Carbon Steel 1.2mm 1.5mm 3mm
JEPJ100F8-4125-5
chamber cylinder heads, pistons accept 1/16" JEPJ10008-4145-5* 4.125" Moly 1/16" 1/16" 3/16"
Moly
4.145"
3/16"
1/16"
1/16"
top, 1/16" second and 3/16" oil rings. JEPJ10008-4155-5* 4.155" Moly 1/16" 1/16" 3/16"
Rod Comp. Dome JEPJ100F8-4155-5 4.155" Moly 1/16" 1/16" 3/16"
Part No. Bore Stroke Length Ratio Volume JEPJ10008-4165-5* 4.165" Moly 1/16" 1/16" 3/16"
JEP257956 4.500" 4.000" 6.135" 8.4:1 -11.5cc JEPJ100F8-4185-5 4.185" Moly 1/16" 1/16" 3/16"
JEP257942 4.500" 4.250" 6.385" 8.4:1 -20cc JEPJ100F8-4310-5 4.310" Moly 1/16" 1/16" 3/16"
JEP257945 4.600" 4.250" 6.385" 8.7:1 -20cc JEPS100S8-4310-5 4.310” Moly 1/16” 1/16” 3/16”
Note: Compression ratios are based on a 118cc combustion chamber. JEPJ100F8-4320-5 4.320" Moly 1/16" 1/16" 3/16"
JEPJ10008-4350-5* 4.350" Moly 1/16" 1/16" 3/16"
JEPJ10008-4500-5* 4.500" Moly 1/16" 1/16" 3/16"
JEPJ100F8-4500-5 4.500" Moly 1/16" 1/16" 3/16"
JEPJG8608-4600-5 4.600” Moly .043” 1/16” 3/16”
* Low tension ring set.
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