Does ihra allow this?

bill dedman · 03-05-2009, 05:50 PM

Of course, the ideal situation would be to run a "substitute" 3-speed automatic like one of the TurboHydramatics (metric TH200/TH350/TH400) behind a 409, but if it's a '62, '63, or '64, would it be restricted to a Powerglide (2-speed) since none of the Chevys had 3-speed automatics until '65 (and, the Turboglide 3-speed automatic was discontinued after '61)?

It would be a shame to win the battle, only to lose the war... I don't know how well a dual-quad 409 with a long-duration cam, in a heavy car, would like a Powerglide.... Maybe one with a deep 1st gear.... and a loose (7"???) converter.

Might make a good GT/AA combination....

03-05-2009, 05:50 PM	#5
bill dedman VIP Member Join Date: Feb 2002 Location: Conway, AR Posts: 1,739 Likes: 0 Liked 6 Times in 4 Posts	Re: Does ihra allow this? Of course, the ideal situation would be to run a "substitute" 3-speed automatic like one of the TurboHydramatics (metric TH200/TH350/TH400) behind a 409, but if it's a '62, '63, or '64, would it be restricted to a Powerglide (2-speed) since none of the Chevys had 3-speed automatics until '65 (and, the Turboglide 3-speed automatic was discontinued after '61)? It would be a shame to win the battle, only to lose the war... I don't know how well a dual-quad 409 with a long-duration cam, in a heavy car, would like a Powerglide.... Maybe one with a deep 1st gear.... and a loose (7"???) converter. Might make a good GT/AA combination.... __________________ Bill