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Re: 90 454SS vs 94 Lightning - TrucksTV
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Originally Posted by GreaseDog
TBI debuted in 82 with the Cross Ram in the Vettes, and followed suit in the F Bodies in 83. in 87 it became the norm on all trucks, with only the 454 remaining as the only option for a carbed engine, it was also available with TBI on top of it. Ford's MPFI debuted in 1986, so GM had the jump on them by a couple years with use and experience with their system.
in 1990 the 4L80E simply didnt exist in 1990, it debuted in 1991. your memory must be failing you, the 4L80E has always been a rock solid trans. ever look at the gear spacing on a 4L80E compared to a TH400? they're identical, except the 80E has a 4th .75:1 OD that the TH400 doesnt have, all other gears are the same. the 4L80E is based off of the TH400 purely for its strength purposes.
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F-bodies had cross fire in 82, 83, 84, TPI followed in 85-92 and TBI went from 87-92
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91 GMC 350 5 speed, SAS started, HP 60/14 bolt
91 camaro, bolt ons, 454 started on rebuild, waiting on wieland 8-71 blower
'00 ZX9R, 150 RWHP
'84 K10, 6" Tuff Country, 35s. soon to have 1 ton swap and 383 TPI
'63 CJ5
TUFF COUNTRY LIFT FOR SALE $450, EAGLE WHEELS AND 35" BFGs $1200
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