The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

I did the same mod many years ago to the TH350 in my 69 C10. It bumped the WOT shift point to around 4500, as I recall, which was perfect. When/if I wanted it to rev higher, I'd just hold the trans in gear.

__________________
Mike
1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold
1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

07-08-2015, 12:59 PM	#2
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,671	Re: DIY TH350 Governor Calibration I did the same mod many years ago to the TH350 in my 69 C10. It bumped the WOT shift point to around 4500, as I recall, which was perfect. When/if I wanted it to rev higher, I'd just hold the trans in gear. __________________ Mike 1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!