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General Discussion \  4.3 question guys

4.3 question guys

General Discussion
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dat dood   +1y
Just remember the trans, I wouldn't put a 4.3 in front of a stock Mazda trans. Camaro 5 speed, S-10 5 speed, or fullsize truck 5 speed. The Camaro trans will drive more like a sports car with closer ratio gears, S-10 trans is a decent middle ground, and fullsize trans is geared wide and gonna shift like a truck. Plus, if I remember correctly, the Camaro trans has the bracket for the torque arm so you can run a torque arm rear suspension setup if you desire.
87_b2600   +1y
really thats sick. and i will have to think about that. might go with a s 10 tranny lol. still deciding lol.
rickypopham   +1y
4.3 have a range of different blocks and intakes on them from factory. If your wanting to go Carb'd I'd say stay with the earlier years since there will be less stuff on them. Early 90's 4.3 would work best for you I believe.
87_b2600   +1y
thanks for the input mate. it really helps me out for when my 2.6 blows up lol i will see if i can find a old junk yard 4.3 lol
dat dood   +1y

You can use ANY year 4.3. After 91 they incorporated a balance shaft on the cam and they introduced the Vortec heads in 92. Somewhere along the road the valve covers changed. For me, I'm trying to find an early carbed Astro van motor. They had bigger cams from the factory to make more torque and came with 4bbl carbs.
jimbeater   +1y
hey guys, something you might like to take a look at on the other mazda truck forum (hope i dont get yelled at for mentioning it... i love both boards, i'll take all the info i can get!), there's a guy selling his FI 4.3 swapped mazda or parting it.
87_b2600   +1y
i would do it but i would like carbed lol. i dont wana deal with all the wiring lol
jrock4224   +1y
hey i got a 2.6 if u need parts ... i was gonna swap my truck to one but was missing to much stuff like a fuel tank and tranny....its a fi and the head is off but i seen a video of it running ... the po said he took the head off replacing the timing belt then motor swapped his b....its all there just in boxes and on a pallet
jrock4224   +1y
and a 4.3 is a 350 with two cylinders shaved off...pre 91 are carbed and if i believe pre 91 is throttle body injected... i know where theres a carbed one with a popped head gasket...
87_b2600   +1y
how much mate for the 4.3?