Big block Ignition harness

[Wayne M.]

Re: Big block Ignition harness

I'm not familiar with the configuration of the BB T.I. ignition harness, ......

John -- here's something that's always confused me about 1965 BB engine harnesses; why did the supplier not deliver the assembly to St. Louis in a "ready to plug" condition, rather than the factory having to cut, remove wire lead and add connectors to accomodate the TI engine harness, as all '65 L78 harnesses were T.I. Going by AIM UPC K66 Sheet 5 (for L78) ? I can understand where the instrument panel harness (pink/blk lead from ign. sw. thru firewall) would have to be modified for K66 as this one was the same for all engines.

I can see where, in other K66 years, modifying the non-TI engine harness is more factory efficient, as only the L72 and L71 were K66-mandatory, yet these BB harnesses were the same as for L36, L68 (and different but again the same for the C60 versions of L36 and L68), which were installed in non-TI cars, and made up the majority.

[John H.]

Re: Big block Ignition harness

John -- here's something that's always confused me about 1965 BB engine harnesses; why did the supplier not deliver the assembly to St. Louis in a "ready to plug" condition, rather than the factory having to cut, remove wire lead and add connectors to accomodate the TI engine harness, as all '65 L78 harnesses were T.I.

Wayne -

I have no idea - we'll probably never know; most likely a cost avoidance.

[Ridge K.]

Re: Big block Ignition harness

Thanks Wayne you have been very helpful that's what i needed to know, there is none of the TI System remaining. what i have is a 1965 engine harness for non TI ignition. the engine harness has the voltage reg. connection the alt. connection the horn relay connection all on the drivers side of car. it also have the starter wires, heater blower on passenger side of car, But what I'm not sure about is, there is a B/P wire and a Black wire with a female connection on them that reaches midway of firewall, where do these wires connect.

Brenton do you happen to know if your car has any racing history?

The reason I'm asking, is that my 1967 big-block car was also factory equipped with TI, but that system was removed during it's few years it spent running 1/4 mile drag races. It still even has the rubs from slicks in the rear wheel wells.
I've taked to multiple old-timers who were drag racing 427 Corvettes during the late 1960s, .... that have told me that virtually ALL racers removed the TI system, and returned to standard dual point distributors.
My car does still have the original TI harness, however.

Ridge.