Hi Bob,
Depends on what "street use" means to you. The last time I saw you drive
a T-Type on the street was probably 20 years ago, and the details have
leaked out of my brain. If you're a relatively sedate driver who doesn't
put a lot of mileage on the car, the NOS crank should do fine.
We know the NOS crank can be welded at the scroll (lots of recent
discussion about that here), and I know it can be Tufftrided (but not
nitrided). I suspect Moss' 4340 crank can also be welded, and I'm pretty
sure it can be nitrided (which might be a better choice than Tufftriding).
You should probably try to get advice and more detailed specs from Moss on
that.
On Thu, 22 Jun 2000, Bob Grunau wrote:
> I am re-building the original engine for my 1952 MG TD and have a
> choice of two new crankshafts, one new in the BMC box NOS 168557 BMC
> crank that I have had since about 1970. The second a recent new Moss
> crank, p/n 451-490, 4340 forged chromemoly steel.
> I have several questions.
> 1-Any suggestions as to which crank is better for a- street use?
> b- race use ?
> 2-Will both cranks be OK to low penetration weld up the seal scroll area to
> install the Chevy split seal?
> 3-Will both cranks benefit from Tufftriding or is that not recommended for
> the Moss crank?
--
Chip Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271
Cub Hill, Maryland 1962 Triumph TR4 CT3154LO CT3479E
fold@bcpl.net
|