Circle Track Parts & Accessories

Super 7° Titanium “Non-Shoulder” Valve Locks /LJKWZHLJKWQRQVKRXOGHUW\SHƒWLWDQL - XPORFNVDUHDPRQJWKH¿QHVWDQGPRVW UHOLDEOH&1&PDFKLQHGORFNVZLOOVDYHJUDPVDQG DVVXUHDVXSHULRUYDOYHVWHP¿W6ROGLQVHWVRISDLU

Titanium Valves /LJKWVWURQJDQGUHOLDEOH'HO:HVWYDOYHVDUH PDQXIDFWXUHGXVLQJPLOLWDU\VSHFWLWDQLXPIRUZHLJKW VDYLQJVRIDSSUR[LPDWHO\RYHUVWHHODOOR\V5DGLXV VW\OHORFNJURRYHVUHGXFHYDOYHVWHPDQGWLSVWUHVV DQGUHTXLUHUDGLXVVW\OHYDOYHORFNV6ROGLQVHWVRI eight. 11/32" Titanium Valves

Stem Diameter 11/32" 11/32" 11/32"

Installed Height -.050"

Part No.

Style

DEL689-C-16 DEL690-C-16 DEL691-C-16 DEL693-C-16

Radius Radius Radius Radius

Standard

+.050"

Head Dia.

Overall Length

Part No.

Description

Type

5/16"

Standard

DELEV1600-2T-CRST-8 DELEV1625-6T25-CRST-8 DELEV1625-7T-CRST-8 DELIV2080-1T-CRST-8 DELIV2080-2T-CRST-8 DELIV2100-2T-CRST-8 DELIV2180-6T-CRST-8 DELIV2080-1T-CRST-8

+.200" Long +.600" Long +.700" Long +.100" Long +.200" Long +.200" Long +.600" Long +.100" Long

Exhaust 1.600" 5.140" Exhaust 1.625" 5.540" Exhaust 1.625" 5.540" Exhaust 1.625" 5.640" Intake 2.080" 5.040" Intake 2.080" 5.140" Intake 2.100" 5.140" Intake 2.180" 5.540" Intake 2.080" 5.040"

Super 7° Standard And “LTW” Titanium Retainers 5HWDLQHUVDUH&1&PD - FKLQHGIURPELOOHWWLWDQLXP heat-treated for maximum VWUHQJWKDQGRIIHUHGLQ VWDQGDUGRU³/7:´OLJKWZHLJKWGHVLJQV³/7:´

DELEV1625-6T-CRST-8 +.600" Long/25° Seat

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Super 7° Titanium “Shoulder” Valve Locks /LJKWZHLJKWORFNVDUHPDFKLQHGIURPKLJKTXDOLW\WLWDQLXP6ROG LQVHWVRISDLUV Part No. Stem Diameter Installed Height Style DEL790-C-16 11/32" Standard Radius DEL791-C-16 11/32" +.050" Radius DEL792-C-16 5/16" -.050" Radius DEL793-C-16 5/16" Standard Radius DEL794-C-16 5/16" +.050" Radius

Dimensions

Valve Spring

Part No.

A

B

C

D

“LTW” Retainers DEL510-LTW-16

Double 1.450" 1.120" .730" Double 1.450" 1.140" .745"

— —

DEL515-LTW-16

Standard Retainers DEL515-16

Double 1.500" 1.140" .745" Double 1.495" 1.155" .835" Double 1.500" 1.180" .775"

— — —

DEL530B-16 DEL550B-16

Detroit Truetrac 7UXHWUDF¶VSURYHQKHOLFDOJHDUGHVLJQ HOLPLQDWHVIULFWLRQSODWHVFRQHVDQG

CTR &75 &LUFOH7UDFN5DFLQJGLIIHUHQWLDOVDUH HQJLQHHUHGH[FOXVLYHO\IRUOHIWWXUQUDFLQJ &75SURYLGHVWUDFWLRQWRWKHOHIWUHDU wheel and differential action to the right rear

VSULQJVIRUPDLQWHQDQFHIUHHWUDFWLRQ3RZHU WUDQVIHULVVRVPRRWKLWOLWHUDOO\JRHVXQQRWLFHG

E\WKHGULYHU3URYHQGHVLJQORZFRVWDQGHIIHFWLYHSHUIRUPDQFH make the Truetrac limited slip differential the ideal choice for a ZLGHYDULHW\RIYHKLFOHV

ZKHHO,GHDOO\VXLWHGIRUODWHPRGHOVGLUWPRGL¿HGV RUVSULQWVWKH&75DOORZVWKHGULYHUWRVWD\RQWKHJDV ORQJHUHQWHUWKHWXUQVGHHSHUDQGJHWEDFNRQWKHJDVVRRQHU for higher exit speeds.

Axle Dia.

Axle Spline

Part No.

Description

Ratios

DET911A319 DET911A415

GM 7.5", 10-Bolt, 1975-89 1.16" 26 3.23-Up

Axle Dia.

Axle Spline

Part No.

Description

Ratios

GM 7.5", 10-Bolt, 1975-89 1.16" 26 3.08-Down DET912A317 GM 7.5"/7.6", 10-Bolt, 1988-05 1.20" 28 3.23-Up DET912A616 Ford 8", Up To 1978 — 28 3.25-Up DET912A587 Ford 9", 1957-79 1.20" 28 All DET913A481 GM 8.5", 10-Bolt, 1988-96 1.32" 30 2.73-5.13 DET913A586 Ford 9", 1957-79 1.32" 31 All Exc. 2.72 Detroit Locker DET187SL17B 7KH'HWURLW/RFNHUHQJLQHHUHGIRU )RUGUHDUVZLWKVSOLQHD[OHVPD[LPL]HV WUDFWLRQE\GHOLYHULQJRIWKHDYDLODEOHSRZHU WRERWKGULYHZKHHOV(QJLQHHUHGWRNHHSERWKZKHHOVLQ DFRQVWDQWGULYHPRGHGLIIHUHQWLDOKDVWKHDELOLW\WRDXWR - PDWLFDOO\DOORZZKHHOVSHHGGLIIHUHQWLDWLRQZKHQUHTXLUHG NOTE: Compatible with all ring and pinion ratios except 2.72.

DETR18703A

CTR, Ford 9"

1.32" 31 All Exc. 2.72

Eaton Posi $XWRPDWLFOLPLWHGVOLSXQLWVZLWKFDUERQIULF - WLRQFOXWFKHVDQGIRUJHGJHDUVFRQVLVWHQWO\ DQGUHOLDEO\GHOLYHUHTXDOSRZHUWRERWKZKHHOV 8QLWVDUHUHEXLOGDEOH

Axle Spline Ratios

Part No.

Description

Axle Dia.

DET19557-010 GM 8.5", 10-Bolt Car, 1971-89 1.20" 28 2.73-Up DET19559-010 GM 8.5", 10-Bolt Car, 1988-96 1.32" 30 2.73-Up DET19603-010 GM 8.2", 10-Bolt Car, 1964-72 — 28 3.08-Up DET19663-010 GM 7.5", 10-Bolt, 1975-89 1.16" 26 3.23-Up

299

2019-20 CIRCLE TRACK PARTS AND ACCESSORIES

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