A7 shooting star 66mm plus 40 thou pistons

[Stevefromleicester]

Hi there
Anyone know where in the UK I can get two pistons.
I need 66mm plus 40 thou and sets of rings as well.
My current broken piston is
67-1447 1mm oversize which is 40 thou.
I bought a longstroke piston (62mm) by mistake its NOS and £20 plus p and p.
Cheers
Steve

[Minto]

Give IMD a ring, I'm sure they do A7 pistons in that size. I'm in the process of rebuilding my A10 with IMDs +040 they look really good quality and Adrian is a very helpful and pleasant bloke to deal with.
Telephone 01829 261641
Jase

[Stevefromleicester]

Thanks I will try them. For some reason A7 shooting star pistons seem a lot less common than A10 (or long stroke A7 which are everywhere).
I used to own a Rocket Gold Star replica when I were a youth and building up this A7 is the nearest I will get to that, 40 years on !

[Stevefromleicester]

IMD are not showing any A7 stuff just A10 piston kits on their website but I will contact them just in case.

[Minto]

When I visited them up in Tarporley I'm sure Adrian said that he'd had A7s made.
I'll see if I can find the leaflet I picked up with the product list.

[rocker21]

try this  https://www.classic-motorcycles.co.uk/cgi-bin/ecom.cgi?Command=ShowProduct&db_pid=4226
i bought my A7 pistons off them
Ken

[Klaus]

I can offer you a new set  with 66 plus 0,8mm wich is the size between. If you have any interest send me a pm.

Cheers Klaus

[Stevefromleicester]

Thanks, but I need 40 thou as bore already taken out to 40 thou oversized. Cheers steve

[rocker21]

follow the link i posted, they are +40 thou

[Stevefromleicester]

Thanks , I did follow the link you sent but I was trying to find some that werent £162 each !
Steve

[Peter in Aus]

you could try this mob
JP Pistons - Nornda
https://www.norndaautomotive.com.au › jp-pistons

[RDfella]

I see JP make pistons for stationery engines. The models one has on one's desk, presumably?

[Rocket Racer]

66+40, thats a std bore size for an a75/t160, so you should have plenty of options

[Stevefromleicester]

Thanks for that info. Useful to know the bore is the same but there are other issues like compression ratio, clearance for valves, weight of pistons , dia of gudgeon pin etc etc. But I will check if any are suitable for an A7 SS.

[bsa-bill]

66+40

I have missed something if it's std bore where does the +40 come in