I am curently running a 96 marine motor in my camaro with a carb on it. I just currently picked up a tpi setup, with the computer, harness, intake, fuel lines, distrib, the whole 9 yards for 250 bucks. The question is since the tpi is off an 86 iroc, and my motor is a 96 with the centerbolt heads, could I used my freinds tpi manifold of his 91z thats for speed density or not?

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1991 teal camaro RS rebuilt 96 350 marine motor, comp cam, accel ignition,8mm accel plugs and wires, flowtech headers, stock exhaust, and rear end. (2.73)

 

Yes, the centerbolt heads should have the newer intake bolt pattern, and the 86 intake will have the older pattern. You'll need the 91 intake or any aftermarket intake for it to bolt up.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

yes, but will there be any different sensors or things that wont match cause the setup i am using is mass air and the intake is speed density

 

mac,
the use of a pre 87 manifold onlt means the
intake will have to machined to properly
bolt to your cylinder heads. mainly the
four inner intake bolts. using your friends 91 manifold
means no machine work.
90-92 camaros used a speed density system to
operate the injection system. (MAP sensor)
84-89 camaros used a mass air flow system to
operate the injection system. (MAF sensor)
the easiest to install and operate is the speed
density system.
both use the same sensors with the exception:
MAF sensor for the mass air flow vs
MAP sensor for the speed density.
if you try to use the MAP or MAF, harness and sensors
you will need a chip that has the VATS removed
so the vehicle will start.
also youll need to change fuel pump to deliver
the right pressure for the injectors.
you will have to run a return line to the tank
for the unused fuel. most purchse these lines
from a salvage yard.. $20-30.
hope this helps...
airdeano


[This message has been edited by airdeano (edited July 31, 2001).]

 

Just a thought... you could buy the Accel/LPE intake (its over $500) and that has intake bolt patterns for both style heads, and that way you get a high performance intake, again, just a suggestion.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, LPE High Flow TPI Baseplate, Edelbrock TES 1 5/8" Headers, Catco 3" High-Flow Catalytic Converter, Hooker 3" Aerochamber Cat-Back System, Transgo Shift Kit, Performance Resource Chip, Accel Ignition, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET: 14.32 @ 97.7mph
(corrected for elevation)

 

all that means is that the intake bolt holes are oval. Get to grinding on the one you have if you need to. that's it. No $500, no odd intakes.

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

To be installed eventually far far far into the future: Yours if the price is right and I don't have to ship :
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

 

isn't the marine engine a vortec?
Its been 5 years since I worked on one I can't remember what year they switched to vortec.

 

Its more than just oval holes- Aftermarket manifolds have two angles machined into them so that the bolt will sit flat on either type of head.
On a stock manifold, it would take additional machining to accomplish this.
I'm not sure if this would lead to sealing problems cause the bolt is off a little.

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'88 RS (originally 2.8)
-350, .040 over, vette alum. L98s, stock tpi.
-305 injectors & chip
-TES headers & edelbrock cat back
-3.73 gears, 700r4.
Best with 2.8-17.4@77mph
Best with 305-15.0@93mph
Best with 356-13.7@101mph
on a 2.050 60 ft.
(Damn the 2.8!)

 

no I wish the heads were vortec, maybe then the motor would have alot higher compression, 96 was the last year they didnt use the vortecs on the marine motors. Maybe I can just use the old style intake and pick-up some aftermarket older style heads or pick up a stock set from the bone yard and make them higher compression, cause this motor isnt even 9 to 1

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1991 teal camaro RS rebuilt 96 350 marine motor, comp cam, accel ignition,8mm accel plugs and wires, flowtech headers, stock exhaust, and rear end. (2.73)