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#1 |
97' Tahoe 2dr/2wd
Join Date: Jul 2002
Location: Huffman,TX
Posts: 1,168
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if i switched to a carb and old hei, what other things could i do to wake the motor up?
mabey like an eldebrock performer intake and cam and lifters? or what? what about 700r4's? will they hold up behind this motor? thanks for the input. tommie |
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#2 |
Slowly getting CRSS...
Join Date: Jul 2001
Location: Lutz, Florida
Posts: 656
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There is no replacement for displacement, a rippin SB may put a smile on your face but a *****in BB will make you crap your pants.
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-Nic Lutz, Fl My Team Website The Heavy Chevy Website ------------------
There is No replacement for Displacement... "If everything seems under control, you're just not going fast enough." - Mario Andretti |
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#3 |
Got big-block?
![]() Join Date: Jul 2000
Location: Austin, Texas
Posts: 2,453
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tommie, it depends on how you intend to use the truck.
You're cam, intake and carb should be matched to the intended usage of the truck. If you want a good running daily driver, keep the cam selection on the milder side. You'd want to maximize torque - not hard to do with a big-block ![]() A good torque building hydraulic cam, a good used Performer RPM intake, and a 750 Edelbrock carb with electric choke will really wake up that 454 to be a serious tire-fryer as well as being easy to live with on an everyday basis. If you're building a weekend warrior, go as wild as you like. I've seen 700R's that can live behind a mild big block, but I'd keep the turbo 400 that's with the motor, or step up to a 4L80E. Just my opinion. SC
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'68 CST SWB factory 396/T400 buddy buckets, a/c, ps, pb '72 Corvette convertible 454/4spd/ac, ps, pb '73 GMC Sierra Grande short wide 454/T400 ps, pb, ac '77 K5 Blazer black on red, 350/T350/NP205 ps, pb, ac all original '78 GMC Sierra Classic short wide 454/T400 ps, pb, ac '72 GMC Sprint SP454. 1 of 38 built. '73 GMC Sprint SP454. 1 of 71 built. '75 GMC Sprint SP454. 1 of 25 built. SOLD! '72 GMC K25 4x4 468/4L80e/NP205 build thread http://67-72chevytrucks.com/vboard/s...23#post4324423 SOLD!'55 Chevy gasser 496/4spd build thread http://67-72chevytrucks.com/vboard/s...96#post4324396 |
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#4 |
Registered User
Join Date: Dec 2001
Location: NW Iowa
Posts: 952
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I can sure vouch that the older ('88 - '93) 454's with tbi are dogs. I had an '88 1 ton and it was sluggish. Then I had a '93 and it was bad as well. Then I got a '97 tpi (I think its called) and it will run pretty good bone stock. These are all 4x4's so never drag them. I now also have an '01 8.1 liter (496 ci) and it will move - fun to drive but not to gas up
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#5 |
Registered User
Join Date: May 2002
Location: N.California
Posts: 20
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The other thing to keep in mind is that the BB from the newer trucks are only like 7.8:1 compression. If you are going to "wake it up" you should raise the compression.
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'90 454SS '00 Suburban Northern California |
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