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#1 |
Registered User
Join Date: Sep 2006
Location: windsor
Posts: 21
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I have big problems
I bought a 4 bolt main 350 the other weekend rebuilt it and go it all back together with the intent to put it in my 87. Some one told me that you can bolt the EFI intake off the 305 i have and bolt it onto a normal 350 head. But i was quick to relize that the bolt patters were not the same so the EFI intake will not go onto my 350 motor. does anybody no of anyway to fun a carborator in teh 87 truck that is wired for throttlebody. Or of anjy adapter kits that i can buy. Any advice would be greatly apreciated ... thanks nick
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#2 |
The Crazy Machanic
Join Date: Jan 2007
Location: Nokesville Va
Posts: 1,437
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Re: i have big problems
ok so you wnat ur 350 to have the tbi that the 305 has correct or the 350 to be caberated but cant get the intake to fit right casue of the center bolts.
if the 305 was throotle bodied (aka tbi) you will need the heads from the 305 they are catty cornered in the center they do have 350 one like i have from a 1989 jimmy. if you want 350 head you will need them from 1987-1992 350 that had the tbi but it might go to 95 cause my suburban had it like that to. If you dont want to change the heads and just need an intake to make it carberated go to autozone they always have a 350 intake from edelbrock sitting around.
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*1986 Sliverado longbed 400 small block mean as hell, 700r4 trans (5 speed coming one day) ![]() * 1970 chevelle 2dr sedan Latest update June 24 2007. ![]() *1957 4 door stationwagon - pink all original needing a good restore (body great, floors bad) ![]() newest additions 1965 shortbed fleet great granddads. Been told im nuts to bring it back from the dead (still going to happen) plans-all stock with a turbo 292 inline 3 speed column shift. and thats it big block 427 and 5 speed trans and ford 9 inch theyhave no home yet thinking what to put them in and a 79 c60 trash truck um no idea i have one ![]() |
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#3 |
Registered User
Join Date: Dec 2006
Location: Central Maine
Posts: 210
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Re: i have big problems
I'd consider re-using the smaller chamber 305 heads. It's worth going out of your way to retain the EFI and higher compression can't be a bad thing.
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#4 |
Registered User
Join Date: Apr 2005
Location: Austin, TX
Posts: 1,224
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Re: I have big problems
You can also slot the 4 center holes in the TBI intake to let it fit the older heads. I did this with an early TPI intake a few years ago using a large round file. Took maybe 30 minutes.
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- Greg |
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#5 |
Senior Member
Join Date: Aug 2004
Location: Everett, WA
Posts: 2,316
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Re: I have big problems
I bet if you contacted the major intake manufacturers they would have an intake to go either way; carbed on a TBI engine or TBI adapter for an older style head.
I also seem to remember a TBI adapter plate for a stock spread-bore manifold?
__________________
2009 Honda Fit CfC (bsf 44.9 mpg) 2000 Tahoe Limited 1991 GMC CrewCab Dually 2wd, will end up swb, not dually and replace CCswb below 1991 GMC CrewCab Dually 4x4, just going to fix things up for now 1982/1989 K5/GMC Jimmy 2wd 1987 GMC 1/2 ton swb 2wd Crew (sold) |
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#6 | |
Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: I have big problems
Quote:
Either that or run a Edelbrock Performer 2101 intake with this adapter http://www.holley.com/17-45.asp or one like it. |
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#7 | |
Registered User
Join Date: Sep 2005
Location: Sun City West, Az
Posts: 3,822
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Re: I have big problems
Quote:
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" Never look up a dead dogs butt." ![]() |
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#8 |
The Crazy Machanic
Join Date: Jan 2007
Location: Nokesville Va
Posts: 1,437
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Re: I have big problems
i have the edelbrock #2104 its the Chevrolet 262-400 Small-Block V8
PERFORMER - FOR 1987-95 CAST IRON CYLINDER HEADS (idle-5500 rpm) Designed for street 262-400 c.i.d. Chevy V8s that have heads with canted center bolt holes. And it works great and man i still think i have a tbi
__________________
*1986 Sliverado longbed 400 small block mean as hell, 700r4 trans (5 speed coming one day) ![]() * 1970 chevelle 2dr sedan Latest update June 24 2007. ![]() *1957 4 door stationwagon - pink all original needing a good restore (body great, floors bad) ![]() newest additions 1965 shortbed fleet great granddads. Been told im nuts to bring it back from the dead (still going to happen) plans-all stock with a turbo 292 inline 3 speed column shift. and thats it big block 427 and 5 speed trans and ford 9 inch theyhave no home yet thinking what to put them in and a 79 c60 trash truck um no idea i have one ![]() |
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#9 |
www.73-87chevytrucks.com
![]() Join Date: Dec 1999
Location: Birmingham, AL
Posts: 6,935
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Re: I have big problems
Just elongate the center 4 holes and use the heads you currently have.
BTW using 305 heads will RAISE the compression, but the valve and ports are SMALL.
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Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com |
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