LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1984 >> Jimmy 6.2 C >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Distributor Application & Specifications >> Distributor Specifications >> Gm Distributors
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Gm Distributors

DISTRIBUTOR AUTOMATIC ADVANCE SPECIFICATIONS (DEGREES & RPM) (1)

Part No. Rot. (2) Deg. RPM Deg. RPM Deg. RPM
1103375 CC 0-6 1400 14-18 2800 20-24 4200
1103376 CC 0-6 1400 12-16 2800 18-22 4200
1103420 CC 0-6 2000 N/A N/A 22-26 4000
1103436 CC 0-8 1300 14-18 2400 20-24 4600
1103460 (3) CC N/A N/A N/A N/A N/A N/A
1103465 CC 0-4 1400 6-10 2000 18-22 4200
1103480 (3) CC N/A N/A N/A N/A N/A N/A
1103481 CC 0-4 1400 6-10 2000 18-22 4200
1103482 CC 0-4 1400 6-10 2000 18-22 4200
1103483 CC 0-4 1400 6-10 2000 18-22 4200
1103520 CC 0-6 1200 12-18 2200 18-24 6000
1103521 CC 0-4 1400 8-12 2200 16-20 4800
1103570 (3) CC N/A N/A N/A N/A N/A N/A
1111388 CC 0-6 1300 12-16 2400 22-26 4100
(1) For distributor RPM and degrees, divide specifications by 2.
(2) CC = Counterclockwise, as viewed from rotor end.
(3) HEI-EST distribitor does not use centrifugal advance.
DISTRIBUTOR VACUUM ADVANCE SPECIFICATIONS (DEGREES) (1)

Part No. Degrees In. Hg Degrees In. Hg
1103375 0 3-6 10 7-9
1103376 0 7-10 10 13-14
1103420 0 9-11 10 12-14
1103436 0 2-4 20 6-9
1103460 (2) N/A N/A N/A N/A
1103465 0 2-4 20 6-9
1103480 (2) N/A N/A N/A N/A
1103481 0 2-4 18 5-7
1103482 0 2-4 24 7-9
1103483 0 2-4 20 6-9
1103520 0 2-4 10 5-7
1103521 0 2-4 10 5-7
1103570 (2) N/A N/A N/A N/A
1111388 0 2-4 20 6-9
(1) For distributor RPM and degrees, divide specifications by 2.
(2) HEI-EST distribitor does not use vacuum advance.