On Wed, 2 Aug 1995, Dave Morris wrote:
> A friend of mine is building an engine for his '74 MGB. The short block
> assembly is from a '74 Austin Marina 1800 (18V engine) the head is from
> an MGB (possibly an earlier '18GB' type) and he is using an aftermarket
> cam and lifter (cam follower) kit with 10.5" pushrods.
>
> The problem is the pushrods are not long enough to allow him to adjust
> the valves. It appears as though the pushrods are about 0.375" too short.
> The shop that sold him the cam insists that he has the right lifters also.
> Questions:
> Are there any differences between blocks and heads of different years that
> would cause this problem?
> Are there any pushrods that are about 10.875" available?
> Are there any lifters that would give the necessary additional 0.375"?
>
The MGB used 2 sizes of lifters and pushrods over the years:
1962-70/71 (G-GK engines) 8.75" pushrods and long lifters
1971-80 (V engines) 10 21/32 pushrods and short lifters
The lifters and pushrods (as a set) for a late engine (New of course) can
be used in an early car. (For example ISKEY makes performance lifters
and pushrods for the late model which can be used in the early model)
The same head was used from 68-74 so this should not be a problem.
I would wonder if the Austin had a different block, head, or pushrods ?
You might try the main british-car list for an Austin person.
Gary
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