Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
1989 454 Ignition
#8
I know this is late but I have replaced the entire factory pertronix distributor on one engine (1986 7.4L) using a HEI system from:

a. http://performancedistributors.com/    (901) 396-5782
i. Distributor - DUI-M12720RD,  Ser#90197
ii. Recommended plug gap - .055 - Gapped to .045 based on Chevy HEI recommendations
iii. 20 degrees total advance
Parts for Distributor in an emergency:  1985 Chevrolet C30 Pickup, 7.4L

Full distributor replacement. Easy wiring. New plug wires will be required. Just waiting for the port side to die now. Much improved starting with no chokes.
Rob

1986 Tiara 3600 Continental, 454 Crusaders, 7.5kw Diesel Genset
2002 Luhrs 290 Open, 315hp Yanmars
Reply


Messages In This Thread
1989 454 Ignition - by Travis - 06-08-2019, 04:55 AM
RE: 1989 454 Ignition - by Sans Peur - 06-08-2019, 08:15 AM
RE: 1989 454 Ignition - by Travis - 06-08-2019, 04:52 PM
RE: 1989 454 Ignition - by jclark003 - 06-08-2019, 10:30 PM
RE: 1989 454 Ignition - by Travis - 06-26-2019, 03:36 PM
RE: 1989 454 Ignition - by Sans Peur - 06-26-2019, 08:33 PM
RE: 1989 454 Ignition - by jmcnair - 06-27-2019, 03:31 PM
RE: 1989 454 Ignition - by Rotor - 04-17-2020, 09:32 PM

Possibly Related Threads…
Thread Author Replies Views Last Post
  Looking at a 1989 3600 repowered with MerCrusier 8.1 HO 's @ 425hp GMT16750 4 2,838 09-14-2023, 02:25 PM
Last Post: GMT16750
  1989 454 parts Tlew 3 4,650 07-22-2018, 08:34 PM
Last Post: Rotor



Users browsing this thread: 1 Guest(s)
Advertisements

Latest Threads
Remodeling complete for MarineMax store ...
Last Post: gracewilson
Yesterday 06:45 PM
» Replies: 5
» Views: 14207
89 3100 convertable
Last Post: gracewilson
Yesterday 05:45 PM
» Replies: 1
» Views: 914
38 - 43' Tiara Open Comparision
Last Post: tk17
Yesterday 02:44 PM
» Replies: 8
» Views: 8552
Tiara 40 Express 2003 - Removal of Cleat
Last Post: thomasbrown
Yesterday 02:43 PM
» Replies: 1
» Views: 245
Main DC Breaker for 1995 Tiara 36 Open
Last Post: gracewilson
10-26-2026 08:09 PM
» Replies: 3
» Views: 1454