ANy TPI people in the house?

buggybuilder

buggybuilder

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Hey guys Im trying to finish up this dam buggy and while I was installing the intake on my motor I noticed that Ive got a gap where the intake meets the heads where the intake has been notched for something from the factory.Im running a 1991 TPI intake on a set of pre 87 Style Dart Iron eagle heads on an old style chevy small block.Maybe its a gasket issue as Im using the original gaskets for a 1974.Any ideas?Heres a few pics.let me know .......
 

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A different intake or you could have the intake notch filled in and then milled back down flush with the rest of the intake/head surface
 
That's where the fuel injectors go.. :flipoff2:

Just had to say that...

anyway, the only difference I'm away of between the 2 years is the one piece rear main and the dipstick side...

I can't imagine it's purely a gasket thing, since even with a gasket covering it, that's a leak waiting to happen regardless...

Do you have a plain old manifold to mock up? that's a water passage I'm guessing?
 
The prolbem you are having is the cylnder heads that style intake will only match up with 87 and newer heads the intake flang is taller on 87 and newer and the center 4 bolts are at the proper pitch if you have any questions call me at 454-2724 after 6:30 or 299-2081 before 6:00 pm
Warren ASE,gm,land rover ,mercedies,cert tech :bling:
 
Everything Ive read says you can install this intake on pre-86 heads if you mill out the 4 center holes........is it a matter of the intake mating surface of the 87+ heads are longer?This will physically work right just need to figure a way to seal this area?The intake ports etc all line up just fine..........Help me out,thanks.
 
heres a pic of the entire intake...dont have any pics of it off but Ive got another one just like it and I will get a pic of it.....
 

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check the intake gaskets for a 1991 tpi intake agnist what you are useing and you should see the diffrence there try to get some with metal in between the material also MR GASKET makes a wider set of gaskets that should cover that hole and just give me a ring and on sat I can come over and get a closer look . I belive the gaskets you want are mr gasket part no 5821
 
Went and checked a few gaskets for a bunch of different years and they were all the same!I guess im up shit creek here huh? :huggy:
 
I think me's figured it out!
301-10121111
SB-Chevy Iron-Eagle 64cc Chamber, 180cc Intake Head, 2.02''Int/1.60''Exh, Straight Plugs, Complete (Each)
Specifications:
Material: Superior iron alloy
Combustion Chambers: 64cc
Intake Valve Dia.: 2.02''
Intake Port Volume: 180cc
Intake Port Dim.: 1.910''H x 1.120''W
Intake Port Location: Stock
Intake Gasket: Fle-Pro 375-1204 (Can not use OEM type) :flipoff2: :flipoff2:
Exhaust Valve Dia.: 1.60''
Exhaust Port Volume: 75cc
Exhaust Port Dim.: 1.375''H x 1.325''W
Exhaust Port Location: Stock Location and Bolt Pattern
Exhaust Gasket: Fel-Pro 375-1404
Flow, Intake: 222 cfm @ .500'' Lift / 28''
Flow, Exhaust: 175 cfm @ .600'' lift / 28''
Head Bolts: ARP 070-134-3601
Head Studs: ARP 070-134-4001 or 070-234-4301 (12pt)
Manifold: Dart Aluminum Dual Plane (opening 1.125'' x 1.880'') 5'' Tall or most aftermarket intakes
Milling: Min. 58cc = .060'' (.0065'' = 1cc) Flat Mill Angle mill .125'' safely / .200'' = 49cc 1.5° (Carefully)
Pistons: Most 23° aftermarket pistons
Push Rod Length: Stock (7.800''), Push Rod Guide Plate: Must only use Comp Cams 249-4808
Retainers: Steel 1.250'' = 7°, 1.437'' = 10°
Spark Plug: Straight, .460'' reach, tapered seat
Spring Cups: None
Spring Pockets: 1.550'' OD (.030'' deeper max)
Springs: 1.250'' = 110lb @ 1.700'' / .520'' Max, Comp Cams 249-981-16; 1.437'' = 130lb @ 1.800'' / .620'' max, Comp Cams 249-987-16
Valve Angles: 23°
Valve Length: Standard = 4.890''
Valve Stem Dia.: .3415'' - 11/32''
Valve Train: Standard SB-Chevy 3/8'' Stud Mount
Valve Guides: 1/2'' OD Int = Mag-bronze, Exh = Phos-Bronze (.002'' press)
Valve Guide Length: 1.950''
Valve Guide Clearance: 1.890'' moved .030'' from stock
Valve Seats: Exh. = Hardened ductile iron, .006'' press
Valve Seat Dim.: Exh. = 1.650'' x 1.350'' x .350''
Valve Seat Angles: Int. = 32° - 45° - 60° - 70°, Exh. = 37° - 45° - radius
Torque: Head bolts = 70ft/lb; rocker studs = 45ft/lb; Manifold = 35ft/lb
Block Use: Any SB-Chevy Iron or Aluminum Block
Weight: 52 lbs
 
Ahhh-HA!!!

[homer]D'OH![/homer]
 
You probibly allready know this but you center intake bolts on you r head are drilled at a angle and the holes on you intake are straignt up and down.

Just question WHY A TPI A MPI would be so much better

TPI are Batch fired. All of the right Side injectors are fire at the Same Time. and the same on the left side. so you have alot of wasted fuel
 
Ridgerunner said:
You probibly allready know this but you center intake bolts on you r head are drilled at a angle and the holes on you intake are straignt up and down.

Just question WHY A TPI A MPI would be so much better

TPI are Batch fired. All of the right Side injectors are fire at the Same Time. and the same on the left side. so you have alot of wasted fuel
Click to expand...


Yep Im aware of the angle on the bolts,Ive alreadt machined the intake to accept the angled bolts......What Year model do you find an MPI setup on that was for a V8?LT-1? LS-1? Aftermarket? I did it because the price is right and it will perform a better than your average TBI setup.Im not really worried about wasting fuel.......its a play toy.....
 
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