4.3 V-6 into a F-Bird?

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BAD 4 GOOD - 16 Feb 2008 15:50 GMT

Well the head gasket finally went on my 95 , auto,3.4 bird (156k on it) a
few weeks ago.

I am wondering if a 4.3 would work as a replacement.....any
thoughts/comments..

Would the computer be compatible from the F-bird ?
( would it compensate injector flow for the larger displacement)???..
Would the tranny bolt up with no problems?

I have already done an engine swap from underneath, on a 94 v-6 camaro
before....,and what a pain it was.

T I A......Stan

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SBlackfoot - 16 Feb 2008 23:37 GMT

> Well the head gasket finally went on my 95 , auto,3.4 bird (156k on it) a
> few weeks ago.
[quoted text clipped - 8 lines]
> I have already done an engine swap from underneath, on a 94 v-6 camaro
> before....,and what a pain it was.

Totally different block, nothing will bolt up at all.The 3.4L is a 60 degree
block. The 4.3L is a 90 degree block, based off of the sbc. Two completely
different animals.

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NYG706 - 17 Feb 2008 02:16 GMT

> Well the head gasket finally went on my 95 , auto,3.4 bird (156k on it) a
> few weeks ago.
[quoted text clipped - 10 lines]
>
> T I A......Stan

From what I understand, the 4.3 is a 5.7 with 2 cylinders lopped off. This
impacts you because everthing that you would need to do to in stall a 5.7
would be needed to install the 4.3 .
Find another engine in the 3.4 family. I believe the 3.8 fits that family.

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ChEvRoLeT - 17 Feb 2008 03:23 GMT

I know for a fact people are using the 3800 SC engines behind a 3100 tranny.

> --
>
[quoted text clipped - 18 lines]
> would be needed to install the 4.3 .
> Find another engine in the 3.4 family. I believe the 3.8 fits that family.

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BAD 4 GOOD - 17 Feb 2008 15:57 GMT

I was trying to stay away from the 3.4's/3.8's because of the head/intake
gasket problems.

I had the 4.3 in mind because of the larger size..
( and I don't think it was problem plagued like the above motors are)

..I didn't want to go the v-8 route.

I thought the 3.4 and the 4.3 would be close (external size)
and the electronics would interchange.(computer functions/compatibility)
( Also that they came in S-10's...quite common
find with reasonable amount of usable mileage still left in them)

I'm not sure if I'm gonna do it....just wanted some insight if I do go for
it.

Stan

> From what I understand, the 4.3 is a 5.7 with 2 cylinders lopped off. This
> impacts you because everthing that you would need to do to in stall a 5.7
> would be needed to install the 4.3 .
> Find another engine in the 3.4 family. I believe the 3.8 fits that family.

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