[Healeys] Engine help

[Patrick and Caroline Quinn]

G'day

The six-cylinder engine in my Austin-Healey is the original engine fitted to
the car in 1954. It is a very early Wolseley engine and has a smooth
crankcase unlike those later that were cast with strengthening ribs.

It is the first C-series engine fitted to an Austin-Healey and in no way
would I ever contemplate fitting a 3000 engine.

It was bored out to 2,912cc during the early 1960s and during its current
rebuild it will remain so. No doubt a new cylinder sleeve or four will be
required.

Hoo Roo

Patrick Quinn
Sydney, Australia

-----Original Message-----
From: healeys-bounces at autox.team.net [mailto:healeys-bounces at autox.team.net]
On Behalf Of richard mayor
Sent: Monday, 19 March 2012 1:34 PM
To: lostboys65 at yahoo.com; healeys
Subject: Re: [Healeys] Engine help

Get a 3000 block. You will spend way too much money to get a 100-6 block out
to 3000 specs, and that is only if you can safely do it.  I seriously doubt
it. I looked into it at one time as I had a 100-6, 2639 cc block,  and stock
3000 pistons. I decided against it. I could not even give the block away
.....
it went to the scrappers.  Everything is the same on a 100-6 engine (other
then 2 port head) as a 3000 engine except for the rods and pistons. Get a
3000
block and bore it out  .030. Have your cam re-ground to the Isky T-3-6
profile. Lighten your flyweel and do a Toyota 5 speed conversion.  Enjoy!

Richard Mayor
BN7L-466  Vintage Racer
Portland, Oregon


> Date: Sat, 17 Mar 2012 19:26:07 -0700
> From: lostboys65 at yahoo.com
> To: healeys at autox.team.net
> Subject: [Healeys] Engine help
>
> Ladies and Gentlemen,
>
> Need some technical information.  I have purchased a
> 1957 BN4 Longbridge 100 6 with the 2 port head.  I have the head and
manifolds
> from a 3000 that I want to transplant.
> 1)  Will the rocker assembly transfer
> to the new head?
> 2)  Do I need to get a different cam to account for the new
> valves?
> 3)  Can I overbore this block to 2912cc without issue?
> 4)  What else
> do I need to know to make this work?
>
> Thanks
>
> John Roesle
> Shawnee, KS. 66227
> 913-687-1654
> lostboys65 at yahoo.com