Looking for convertor opinions

[Lee Thompson]

455 Olds in a Olds G body---500 HP--500 Ft Lbs. torque. 3.73 rear with a 28 in. tire. Putting a built BQ trans in. Leaning toward N/L but need opinions on which convertor and what stall. No highway driving--No drag strip --just Sat. nite cruising. Thanks

 

[bison]

455 Olds in a Olds G body---500 HP--500 Ft Lbs. torque. 3.73 rear with a 28 in. tire. Putting a built BQ trans in. Leaning toward N/L but need opinions on which convertor and what stall. No highway driving--No drag strip --just Sat. nite cruising. Thanks

12" 1800 stall. Assuming it pulls at least 12" or more of vacuum just off idle.

 

[blackplague]

Couple of options!

If your looking for an inexpensive option, a stock d5 should net you around 2400 rpm and can be lock-up or converted to non-lock.

Then you have many versions of the 9.5'' (stock cover converted, billet cover, etc) wich could be l/u or n/l.


If the cam has a lot of duration at .050, it's no fun having a lock-up when the cam is stumbling at real low speeds.

 

[Lee Thompson]

Reply

Thanks for the replys--gives me something to chew on.

 

[JDSfastGN]

I like th D5 idea as well for an enexpensive route, but also think a PTC l/u 10" converter would do well as well. The are affordable and in a lower hp application (ie not a 10 second monster) it should work pretty well. We are going to run a tight 2800 PTC 10" l/u in our 540 ci chevelle (675/674 flywheel hp/trq). The coupling should be as good or better than a 12", but with less weight and probably more torque multiplication.

 

[Alky V6]

It shouldn't be taking much cam to get that torque from a 455. Being that it's a cruiser, I would also go with the D5. A little more performance than a stocker 1800.

 

[Dusty Bradford]

Where you plan on shifting it at?

I have done several 10" converters for BB cars and they work well. 2400 or 2800 are options.

 

[sailbrd]

I run a slightly upgraded D5 with in my 455 GSX. Turned a 12.42 with it. Probably not 500Hp more like 450. Right on the edge of what it can handle but did not cost a lot. For cruising and street use it was fine. This year I am working on Procharging it so will need to upgrade.