ive been looking at 4.3L v6's more notably the vortec 4.3's and had a few questions. im told that sbc mounts will work in swapping the engine, if thats true then will the placement be the same as a sbc or will it be set back farther forward or back? depending on that would certainly result in if the transmission lines back up to the crossmember.
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Post Whore
- November 8th, 2009
- 3000
- Tyler Porter
- 85 Z28, 91 Trans am
- Clinton Township Michigan
- student
- Send PM
4.3L v6 questions
91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
00 Tahoe Z71........Stock
97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater -
Post Slut
- December 9th, 2011
- 5919
- Michael H
- 1989 Iroc-Z Convertible/1998 Z28
- Lowell, MI
- Meat Processor
- Send PM
Same position. The mounts on the V6 are cast further up on the block.
1998 Camaro Z28 - Bright Red, 6.0 TR224, 4l60e, 3.42 Eaton TrueTrac
1989 Camaro IROC-Z Convertible - 355 big tube TPI, WC T5, 3.42 Zexel Torsen, CTS-V/C4 brakes
1955 Bel Air 2 Door Post - 357 TPI, Muncie M20, 4 wheel disc
2006 Saab 9-7x 5.3i Daily Driver
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Post Whore
- November 8th, 2009
- 3000
- Tyler Porter
- 85 Z28, 91 Trans am
- Clinton Township Michigan
- student
- Send PM
so all my hearing about sbc mounts working may not be all that true for the engine to be in the same place so it lines up with the cross member?91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
00 Tahoe Z71........Stock
97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater
Comment
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Post Whore
- November 8th, 2009
- 3000
- Tyler Porter
- 85 Z28, 91 Trans am
- Clinton Township Michigan
- student
- Send PM
thats what i figured. should just sit in place of a sbc basically. everything SHOULD bolt right up just have to figure out wiring and cooling and all that which again shouldn't be uber difficult91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
00 Tahoe Z71........Stock
97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater
Comment
-
Post Slut
- December 9th, 2011
- 5919
- Michael H
- 1989 Iroc-Z Convertible/1998 Z28
- Lowell, MI
- Meat Processor
- Send PM

1998 Camaro Z28 - Bright Red, 6.0 TR224, 4l60e, 3.42 Eaton TrueTrac
1989 Camaro IROC-Z Convertible - 355 big tube TPI, WC T5, 3.42 Zexel Torsen, CTS-V/C4 brakes
1955 Bel Air 2 Door Post - 357 TPI, Muncie M20, 4 wheel disc
2006 Saab 9-7x 5.3i Daily Driver
Comment
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Post Whore
- November 8th, 2009
- 3000
- Tyler Porter
- 85 Z28, 91 Trans am
- Clinton Township Michigan
- student
- Send PM
that is interesting. i think im dead set on a 4.3 for my sis, dunno what i want to put it in yet though im thinking some sort of thirdgen bird. my "friend" troy had a 4.3 in his colorado i think it was and that thing would scoot especially for how heavy the thing was. it was definitely heavier than a thirdgen with all the power options he had in it.91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
00 Tahoe Z71........Stock
97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater
Comment
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Post Slut
- December 9th, 2011
- 5919
- Michael H
- 1989 Iroc-Z Convertible/1998 Z28
- Lowell, MI
- Meat Processor
- Send PM
Colorado's only came with the 4 cylinder, I5 (inline 5), and later with the 5.3l
That turbo motor can power cars into the 12's with simple bolt ons and get damn good gas mileage.
1998 Camaro Z28 - Bright Red, 6.0 TR224, 4l60e, 3.42 Eaton TrueTrac
1989 Camaro IROC-Z Convertible - 355 big tube TPI, WC T5, 3.42 Zexel Torsen, CTS-V/C4 brakes
1955 Bel Air 2 Door Post - 357 TPI, Muncie M20, 4 wheel disc
2006 Saab 9-7x 5.3i Daily Driver
Comment
-
Post Whore
- November 8th, 2009
- 3000
- Tyler Porter
- 85 Z28, 91 Trans am
- Clinton Township Michigan
- student
- Send PM
i know it wasnt the colorados i couldnt remember what it was though, it has escaped me.91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
00 Tahoe Z71........Stock
97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater
Comment
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Post Whore
- November 8th, 2009
- 3000
- Tyler Porter
- 85 Z28, 91 Trans am
- Clinton Township Michigan
- student
- Send PM
a kit for a 2.8-3.4 swap? never knew that91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
00 Tahoe Z71........Stock
97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater
Comment
-
Post Whore
- November 8th, 2009
- 3000
- Tyler Porter
- 85 Z28, 91 Trans am
- Clinton Township Michigan
- student
- Send PM
no monty for the last time she is not hot. you got incest wired in the brain cuz91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
00 Tahoe Z71........Stock
97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater
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