Although all the aluminum V8s from Rover are the same, some of the
reading I have done recently suggests that the later 4.2 and especially
the 4.6s are not as good an engine as the earlier ones. This is claimed
to be a result of over-boring the cylinders. Not sure if this is true,
but you might want to think about it. I never remember to ask the
experts (original designers) about it though. Andy Mace can explain
what is meant by that comment. ;)
Doug
-----Original Message-----
From: owner-fot@autox.team.net [mailto:owner-fot@autox.team.net]On
Behalf Of Charly Mitchel
Sent: Saturday, November 29, 2003 10:51 AM
To: Group44TR7@aol.com; fot@autox.team.net
Subject: Re: TR7 Conversion to V8
As far as which Buick V8's are the same, I believe from 1963 to
present(2003) all the 'Rover' motors are the same. That is a 2003 4.6 HSE
with crank sensor will fill in a 1963 F-85. The motors went through several
evolutions, starting out as a 215 ci, then being called a 3500, bored to
3.9, then called a 4.0, a short lived 4.2 and the largest 4.6. Several
companies have pumped these motors up to 400-500 hp and is a very adaptable
motor.
If you got to a late model PI motor, consider that you will have a computer
nightmare and the engine is complete managed by them.
Just my thoughts, Charly
----- Original Message -----
From: <Group44TR7@aol.com>
To: <fot@autox.team.net>
Sent: Saturday, November 29, 2003 4:25 AM
Subject: TR7 Conversion to V8
> FOTers
>
> Under California regulations, it is possible to upgrade a TR7 or
TR8
> street car (or for that matter any other post 1973 Triumph) to a newer
engine.
> The only caveat is that the car is then subject to the same emissions
> requirements of the model year of the car from which the upgraded engine
was
> transferred. The only potentially negative part of this is the car would
be subject to
> continuing air emissions requirements even after it reached the date that
its
> model year became exempted from smog testing.
>
> I am curious as to whether anyone in FOT has investigated the
option
> of replacing the TR7 or TR8 engine with a newer Rover V8 engine including
the
> Rover's factory fuel injection. What year's in the Rover V8 are basically
the
> same lineage as the TR8 engine? Is there somewhere were the Rover engines
have
> been compared?
>
> Awhile back someone referred me to a person here in California who
had
> done the conversion. Due to computer problems, I have lost my stored
> addresses and emails. Would appreciate a recontact.
>
> Cary
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