454 distributor ?

[ericcarr2000]

I am in the process of repowering my tired out 1990 454 with a mildly built motor, don't worry I already bought the bravo 3, . I've been thinking of replacing my factory distributor with an aftermarket one. What kind of a distributor would be a good drop in replacement without any wire cutting?

 

[Bt Doctur]

a T-Bolt 4 and module would work nicely

 

[ericcarr2000]

What are your thoughts on an aftermarket one like a Mallory or msd ignition?

 

[ericcarr2000]

Also send me a link one so I can check it out.

 

[bruceb58]

Delco Voyager EST
http://www.michiganmotorz.com/delco-...tor-p-142.html

Very little re wiring needed.

 

[alldodge]

Your current TB4 works, don't change it

 

[bruceb58]

Your current TB4 works, don't change it

True...was under the impression that there was something wrong with what is in there right now.

 

[ericcarr2000]

So you're saying I currently have a tb 4 then? Where is this module mounted at?

 

[Fun Times]

So you're saying I currently have a tb 4 then? Where is this module mounted at?

Should look like item number 7, http://www.mercruiserparts.com/Show_...L+AND+IGNITION
Mounting may have been either on the distributor assembly or exhaust manifold.

Agreed, if your TB 4 ignition system is working then you'd be better off using it.....If the module ever goes out then the system Bruce linked is a good alternative price wise should you have a difficult time locating another TB 4 module identical to yours. Sometimes a good deal pops up for used ones such as eBay, sometimes not.

 

[ericcarr2000]

Ok I'll check next time I get to the boat.

 

[ericcarr2000]

Ok just crawled in the engine bay and found that triangle shaped module mounted on the inside of the port riser, does this mean I do have the tb4?

 

[Fun Times]

Ok just crawled in the engine bay and found that triangle shaped module mounted on the inside of the port riser, does this mean I do have the tb4?

If it looks like these than yes, Mercruiser thnderbolt 4 ignition module images

 

[ericcarr2000]

Gotcha. Well then I think I'll just reuse the one I have then.