th700r4 vs th350 torque converters? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

slammedLT1 · 05-26-2003, 07:39 AM

hey are the 700r and 350 torque converters interchangeable. I heard you just have to change the pump seal and you can use a 350 in a 700.
I can get a good deal on a high stall

mike

Tom · 05-26-2003, 02:56 PM

I've never heard that before. I wouldnt try it. 700R4 torque convertors MUST be lockup type unless the tranny was rebuilt spacificly not to use a lockup TC, or else your tranny will be dead quickly.

79BIG10 · 05-26-2003, 11:58 PM

I've never heard that either. Tom is right in that it needs to be alock up converter. I would get the right one for the tranny.

SS79chevy · 05-27-2003, 05:35 PM

no they do not interchange the 700R4 has to have a lockup converter

slammedLT1 · 05-28-2003, 02:20 AM

i meant adaptation... as in will the splines in the converter be the same , i know that you can buy a turbo 350 converter with a lock up but i was only wondering if they are interchangeable
thanks
mike

05-26-2003, 07:39 AM	#1
slammedLT1 Registered User Join Date: Jan 2003 Location: Grande Prairie, AB Posts: 77	th700r4 vs th350 torque converters? hey are the 700r and 350 torque converters interchangeable. I heard you just have to change the pump seal and you can use a 350 in a 700. I can get a good deal on a high stall mike __________________ DIGGER 1984 GMC Sierra 1500 LQ4 T56 12B Chopped 2 1/4, Dropped 6/7, Shaved, Yenko Stripes 2004.5 CCSB GMC 2500HD DMAX LLY, 6" Liftmaster, 6 Fox Resi 2.0 325/50/22" Kumho A/T on KMW's LBZ MP, 5"Ex, Bullydog GT 1996 ECSB GMC Sierra 1500 350/4L60E, FL Headers, 2450 Stall, 6" Pro Comp,3" BL, Shock Hoops, , TrXus STS 38's

05-26-2003, 02:56 PM	#2
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,748	I've never heard that before. I wouldnt try it. 700R4 torque convertors MUST be lockup type unless the tranny was rebuilt spacificly not to use a lockup TC, or else your tranny will be dead quickly. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

05-26-2003, 11:58 PM	#3
79BIG10 I'm back with 2nd truck! Join Date: Feb 2002 Location: Texas Posts: 3,774	I've never heard that either. Tom is right in that it needs to be alock up converter. I would get the right one for the tranny. __________________ 1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson

05-27-2003, 05:35 PM	#4
SS79chevy Registered User Join Date: May 2003 Location: hurst,TX Posts: 73	no they do not interchange the 700R4 has to have a lockup converter __________________ 1979 chevy c10 short bed step side BBC in the works

05-28-2003, 02:20 AM	#5
slammedLT1 Registered User Join Date: Jan 2003 Location: Grande Prairie, AB Posts: 77	i meant adaptation... as in will the splines in the converter be the same , i know that you can buy a turbo 350 converter with a lock up but i was only wondering if they are interchangeable thanks mike __________________ DIGGER 1984 GMC Sierra 1500 LQ4 T56 12B Chopped 2 1/4, Dropped 6/7, Shaved, Yenko Stripes 2004.5 CCSB GMC 2500HD DMAX LLY, 6" Liftmaster, 6 Fox Resi 2.0 325/50/22" Kumho A/T on KMW's LBZ MP, 5"Ex, Bullydog GT 1996 ECSB GMC Sierra 1500 350/4L60E, FL Headers, 2450 Stall, 6" Pro Comp,3" BL, Shock Hoops, , TrXus STS 38's



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