tpi base

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Jun 18, 2002 | 07:41 PM

JMDinHawaii

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Joined: Mar 2002

Posts: 45

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From: honolulu

tpi base

Are there any differences in OEM tpi bases through the years?? Are they the same from 85-92?

Jun 18, 2002 | 10:39 PM

88 350 tpi formula

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From: WI,USA

Car: 89 FORMULA 350, 91 Z28 Convertible

Engine: ls1, LB9

Transmission: t56, Auto

Axle/Gears: S60/ 3.73

85-86, 87-92 f-body are almost the same but, the center holes to the head are on a differant angle. the vette intake uses a plumed in tube for the egr. the same should apply for the bolt holes

Jun 19, 2002 | 07:33 AM

Jim85IROC

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From: Readsboro, VT

Car: 85 IROC-Z / 88 GTA

Engine: 403 LSx (Pending) / 355 Tuned Port

Transmission: T56 Magnum (Pending) / T5

Axle/Gears: 3.42 / ?

Keep in mind that the Corvette base is different from the f-body base as well.

Jun 19, 2002 | 12:37 PM

Ricktpi

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Joined: Mar 2002

Posts: 1,654

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From: Lower Salford, PA

Car: 1987 Camaro Z-28

Engine: 6.3L Victor EFI

Transmission: Tremec TKO 600

Axle/Gears: Moser 9"/4.11 Trac-Lok

The center holes on the Vette manifolds are the same as the rest. F-bodies 1987 & up are at different angle. As stated the Vette has an external EGR pipe.