SB Chevy 350/400 23° Dome High-compression pistons are compatible with most stock, aftermarket, and angle-milled
SB Chevy 350/400 23° Flat-Top
Low-friction pistons with double-forced pin oilers and annular oil reservoirs will ¿WPRVW 2(0DQJOH F\OLQGHUKHDGV 5HTXLUHVWRSVHFRQGDQG RLOULQJV7KHSLVWRQVLQFOXGH [ JUDPV KHDY\GXW\ZULVWSLQV6ROGLQVHWVRIHLJKW with double spiral locks.
cylinder heads. Valve reliefs accommodate oversized valves DQGKLJKOLIWFDPV5HTXLUHVWRSVHFRQGDQG oil rings. Sold in sets of eight and include .927" x 2.750" (130 JUDPV ZULVWSLQVDQGGRXEOHVSLUDOORFNV
Rod Length
Comp. Ratio
Dome Volume
Part No.
Bore
Stroke
350 Pistons JEP182005 4.030" 3.750" 6.000" JEP182006 4.040" 3.750" 6.000" JEP182012 4.030" 3.500" 6.000" JEP182014 4.040" 3.500" 6.000" JEP182015 4.060" 3.500" 6.000" 400 Pistons JEP182024 4.125" 4.000" 6.000" JEP182027 4.155" 4.000" 6.000" JEP182028 4.165" 4.000" 6.000" JEP182032 4.165" 4.000" 6.000" JEP182033 4.125" 3.875" 6.000" JEP182036 4.155" 3.875" 6.000" JEP182037 4.165" 3.875" 6.000" JEP182038 4.125" 3.875" 6.000" JEP182039 4.130" 3.875" 6.000" JEP182041 4.155" 3.875" 6.000" JEP182042 4.165" 3.875" 6.000" JEP182052 4.165" 3.800" 6.000" JEP182053 4.125" 3.750" 6.000" JEP182058 4.125" 3.750" 6.000" JEP182061 4.155" 3.750" 6.000" JEP182063 4.125" 3.625" 6.000" JEP182065 4.155" 3.625" 6.000" JEP182067 4.125" 3.500" 6.000" JEP182069 4.155" 3.500" 6.000" JEP207513 4.185" 4.000" 6.000"
13.3:1
+9.5cc +11cc +13cc +13cc +13.5cc
Rod Length
Comp. Ratio
Dome Volume
Part No.
Bore
Stroke
13.7
350 Pistons JEP181916 4.030" 3.500" 6.000" 400 Pistons JEP242886 4.125" 4.000" 6.000" JEP194339 4.155" 4.000" 6.000"
13.1:1 13.2:1 13.5:1 13.4:1 13.5:1 13.7:1 14.6:1 13.5:1 13.2:1 13.3:1 14.1:1 15.0:1 14.1:1 14.2:1 14.5:1 12.7:1 13.6:1 13.7:1 14.1:1 14.3:1 13.8:1 13.8:1 14.8:1
10.3:1
-5 cc
12.2:1 12.3:1
-5cc
-5cc Notes: Compression ratios are based on a 64cc combustion chamber. The 350 pistons listed above fit both 3.480" and 3.500" strokes. SB Chevy 23° F.S.R. Tour Series GP Lightweight, lateral gas-ported pistons
+3cc +3cc +3cc +8cc +3cc +3cc +8cc +8cc +8cc +3cc +8cc +8cc
+5.6cc
are engineered for circle track applications ZLWKXSWRKRUVHSRZHU3LVWRQVXVHDQ aggressive, raised ring competition-only design for maximum performance. Re-
+10.8cc
+10.8cc
quires .043" top, .043" second, and 3.0mm oil rings. Sold in sets of eight, complete ZLWK [ JUDPV ZULVWSLQVDQGZLUHORFNV
+12.9cc +12.9cc
Rod Length
Comp. Ratio
Dome Volume
Part No.
Bore
Stroke
+13cc +13cc
JEP258028 JEP258029 JEP258030 JEP258031
4.030" 3.500" 6.000" 10.4:1 -5.0cc 4.035" 3.500" 6.000" 10.4:1 -5.0cc 4.040" 3.500" 6.000" 10.4:1 -5.0cc
+8cc Notes: Compression ratios are based on a 64cc combustion chamber. All of the 350 pistons fit both 3.480" and 3.500" strokes.
4.045" 3.500" 6.000" 10.5:1 -5.0cc Note: Compression ratios are based on a 64cc combustion chamber. The 350 pistons listed above fit both 3.480" and 3.500" strokes. 13° All Pro/13.5° GB 2000 Dome Ideal for Dirt Late Models, small block Chevy 400 pistons utilize deep valve reliefs to accommodate increased valve lift and smaller combustion chambers. Pistons ac- cept 1.2, 1.5, and 3.0mm rings for reduced friction, and lateral gas ports are used to increase combustion sealing. Sold in sets of eight with .927" x JUDPV ZULVWSLQVDQGGRXEOHVSLUDOORFNV
SB Chevy 400 18° Flat Top Engineered for use on small block Chevy HQJLQHV¿WWHGZLWKF\OLQGHUKHDGV ÀDWWRSSLVWRQVIHDWXUHDORZIULFWLRQVNLUW
GHVLJQDQG&1&PDFKLQHGULQJJURRYHVWKDWDFFHSW DQGULQJV3LVWRQVLQFOXGHYDOYHUHOLHIVWRDOORZFRPSDWL - bility with oversized valves and long duration camshafts. Sold in sets of eight and include oil rail supports, .927" x 2.750" (130 JUDP ZULVWSLQVDQGGRXEOHVSLUDOORFNV
Rod Length
Comp. Ratio
Dome Volume
Part No.
Bore
Stroke
JEP181957 JEP181960
4.125" 3.875" 6.000" 13.1:1 -6.0cc 4.155" 3.875" 6.000" 13.2:1 -6.0cc
Rod Length
Comp. Ratio 15.1 15.2
Dome Volume
Part No.
Bore
Stroke
Note: Compression ratios are based on a 55cc combustion chamber. SB Chevy 400 18° Dome
JEP281793* JEP281800*
4.125" 3.800" 6.000" 4.140" 3.800" 5.850"
-4.5 -4.5
* Compression ratios are based on a 45cc combustion chamber.
3LVWRQVXWLOL]HDVSHFLDOGRPHSUR¿OHIRU improved compatibility with a wide variety of F\OLQGHUKHDGV(QJLQHHUHGIRUODUJHFX - bic inch, high-compression Dirt Late Models, SLVWRQVDFFHSWDQGULQJV and feature valve reliefs that are compatible
with oversized valves and long-duration camshafts. Sold in sets RIHLJKWWKDWLQFOXGHRLOUDLOVXSSRUWV [ JUDP wrist pins, and double spiral locks.
Rod Length
Comp. Ratio
Dome Volume
Part No.
Bore
Stroke
JEP213110 JEP213111 JEP213121
4.135" 3.875" 6.000" 14.7:1 +2.5cc 4.145" 3.875" 6.000" 14.7:1 +2.5cc 4.145" 3.750" 6.000" 14.4:1 +2.5cc
Note: Compression ratios are based on a 55cc combustion chamber.
TANNER ENGLISH
TODD HEALY
442 2019-20 CIRCLE TRACK PARTS AND ACCESSORIES
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