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  1. 4

    OEM level torque converter recommendations please 200R4

    Looking for a 21-2200 stall (per Comp Cams recommendation) lockup 27 spline for cruisin behind a moderate V8. Finding rebuilders are using lo-po V6 cores due to a shortage of high performance cores. Some say this doesn't matter? In the aftermarket B&M for instance doesn't offer them, others...
  2. 4

    Interchange for outdated part GM no's lockup recipe

    Trying to button up pan using a common lockup recipe, these are not found by my GM dealer: 8627332 Normally open/pressure closed switch 24205373 Single pin TH400 kick-down connector switch 14014519 Low-vacuum switch I don't have the typical brake light switch, have a pressure switch...
  3. 4

    How much external cooling needed without cooling line to radiator?

    I'm replacing a THM350 3000 stall with an R4 3000 stall in a street rod SBC cruiser. Currently has a large external cooler on the frame (no fan) which seems to deal with the 350. Will the 200R4 run any hotter or is more sensitive to heat than the 350? I have a large aluminium radiator...
  4. 4

    What other trans dipstick-tube fit 2004R?

    I'd rather avoid the generic trans shop models, will one from another trans interchange? Thanks
  5. 4

    BQ vs Grand Nat valve bodies; shift points?

    Pulling together parts to finally have a 200 R4 done. Have a complete BQ trans and also have a seperate Grand Nat purple stripe valve body. Which one will give me the higher shift points? Other considerations? It's going behind a SBC, 68cc alum heads/Comp XE 274/286, RPM/750 in a sub 3000 lb...
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