Switch-Pitch torque convertors - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ChevLoRay · 12-29-2003, 05:50 PM

I had a '67 Skylark that had a 340/2-speed automatic, with a Vari-Pitch torque convertor. The full-size Buicks had Vari-Pitch convertor on the TH400's. Kenne-Bell used to do a lot with them, 20+ years ago. I haven't looked in a while to see if they're still in business.

Anyway, my question: Have any of you ever run a "switch pitch" convertor behind your truck engine? I like the variable pitches that they have, which can increase torque multiplication from a standard 2.1 to a factor of 2.5. What I'd also like is a lock-up feature for better mileage. I'd really like to stay with my TH400, instead of going to a 700R4. But, that may be the best thing to do.

12-29-2003, 05:50 PM	#1
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Switch-Pitch torque convertors I had a '67 Skylark that had a 340/2-speed automatic, with a Vari-Pitch torque convertor. The full-size Buicks had Vari-Pitch convertor on the TH400's. Kenne-Bell used to do a lot with them, 20+ years ago. I haven't looked in a while to see if they're still in business. Anyway, my question: Have any of you ever run a "switch pitch" convertor behind your truck engine? I like the variable pitches that they have, which can increase torque multiplication from a standard 2.1 to a factor of 2.5. What I'd also like is a lock-up feature for better mileage. I'd really like to stay with my TH400, instead of going to a 700R4. But, that may be the best thing to do. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.



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