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#1 |
Registered User
Join Date: Jan 2016
Location: Somerville, MA
Posts: 28
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Tri Power a '77 Chevy 454
I'm currently working on my mutt of a 1969 K10 running a 1977 454. In the carb category, I have the quadrajet it came with that could use a good rebuilding and on the other hand a GM header and holley tri-power carb off of a '69 Corvette 427.
Anyone here have experience running a tri-power on a big block? Thoughts on tri-power vs q-jet? Given the truck is a mutt I could care less about numbers matching, stock, etc. |
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#2 |
Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: Tri Power a '77 Chevy 454
If its a daily driver i would run one carb sized to the needs of the engine,If its a more a toy i would run 2 4 barrels on a tunnel ram if you got the room.
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#3 | |
Registered User
Join Date: Oct 2010
Location: Central, IL
Posts: 201
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Re: Tri Power a '77 Chevy 454
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#4 |
Registered User
Join Date: Jun 2014
Location: CO
Posts: 738
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Re: Tri Power a '77 Chevy 454
I read a article a long time ago that tested 4 barrel vs tripower and the 4 barrel out performed the tripower every time. Tripower is the coolest looking set up IMO but for less headache a 4 barrel is the way to go.
__________________
79 Chevy 2wd BIG10 350 TH400 |
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#5 | |
Registered User
Join Date: Jan 2016
Location: Somerville, MA
Posts: 28
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Re: Tri Power a '77 Chevy 454
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#6 |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,726
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Re: Tri Power a '77 Chevy 454
tri-power on a 4wd?
__________________
-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. |
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#7 |
Registered User
Join Date: Nov 2014
Location: Alameda, CA
Posts: 877
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Re: Tri Power a '77 Chevy 454
I don't know how much a stock smog dog truck engine would take advantage of that much carb either. I'd much rather have a tiny bit less potential but easy to start and tune than a race engine in a truck.
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1973 C20, 350/350 |
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#8 |
Junior Member
Join Date: Jun 2004
Location: Murfreesboro, Tn
Posts: 1,092
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Re: Tri Power a '77 Chevy 454
If I read that right u only have 1 tri-power carb?
If that's the case, u will not like buying the other 2 and the intake. Better off selling it in eBay to a corvette guy and staying with the 4bl. A 67-69 L-68 or L-71 tri-power setup when tuned correctly is a thing of beauty. Problem is guys back in the day didn't know how to tune properly and most setups were removed in favor of a simplified 4 barrel.
__________________
1969 impala conv 427 #s loaded. dad bought new 1969 "Judge" RA-3, rare warwick blue/white, #'s 1968 vet convertible #s 427/435 tripower (sold) 1968 belair 2door post #s 427/385 1936 ford 5w coupe dads 1st car 1969 camaro ss (17,xxx) miles Wanted: 69-72 suburban project, 69 camaro convertible. also any big block cars. 69-70 gto judge project. |
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454, k10, tri power, tri-power |
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