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Showing results 1 to 4 of 4 Search took 0.00 seconds. Search: Posts Made By: WILMASBOYL78

Forum: L78/L89 specific Forum 04-20-2024, 04:45 PM

Replies: 277 Scuncio Chevelle ex-L78 Views: 188,142 Posted By WILMASBOYL78 engine issues... Couldn't you use a cooling system leak testing pump...the kind that goes in place of the radiator cap?? As for the motor...compression and/or leak down test might give you some helpful info. Good...

Forum: L78/L89 specific Forum 11-02-2022, 02:38 PM

Replies: 277 Scuncio Chevelle ex-L78 Views: 188,142 Posted By WILMASBOYL78 Th-400... You can drop the pan with the tranny in the car...have your shop check the valve body to see if a shift kit has been added. Converter can be swapped without completely removing the transmission....

Forum: L78/L89 specific Forum 10-22-2022, 01:10 AM

Replies: 277 Scuncio Chevelle ex-L78 Views: 188,142 Posted By WILMASBOYL78 Th-400.. For 70-71 the 'R code' TH-400 would be a 454 application from a Chevelle... The 3 lug converter indicates a low-horse option...

Forum: L78/L89 specific Forum 10-20-2022, 10:43 PM

Replies: 277 Scuncio Chevelle ex-L78 Views: 188,142 Posted By WILMASBOYL78 L78 with TH400... The idle aspect is only part of the transmission issue...the hi-perf trannys used behind the L78 were special built units. They had stronger internals, the 6 lug high stall converter, a hi shift...

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