Wildgoose Chase Moto Guzzi

General Category => General Discussion => Topic started by: czakky82 on November 30, 2021, 05:46:34 PM

Title: Asso Pistons
Post by: czakky82 on November 30, 2021, 05:46:34 PM

The only new pistons I can find online for my V7 sport are these old stock Asso pistons.

Does anybody have experience with these?

Title: Re: Asso Pistons
Post by: mtiberio on November 30, 2021, 06:12:29 PM

yes, fine cast pistons. Had some in a used endurance motor I bought from John Hoffman. It was 88x70 for 900 I think. I think one piston ended up disintegrating on the race track in an AMA Pro Twins race (topeka?), but it was being used (abused) well past its expiration date. I wouldn't hesitate to use them in a street bike.

Title: Re: Asso Pistons
Post by: Antietam Classic Cycle on November 30, 2021, 08:25:20 PM

These? https://www.ebay.com/itm/173694313413 If so, the domes are a different shape than the originals and the compression will be higher.

Guzzitech has V7 Sport Gilardoni kits for a good price: https://gtmotocycles.com/products/gilardoni-piston-cylinder-set-82-5mm

Title: Re: Asso Pistons
Post by: czakky82 on December 01, 2021, 03:24:31 AM

Never thought to check with GT. Thanks!

Title: Re: Asso Pistons
Post by: Turin on December 01, 2021, 08:36:46 AM

FYI, all of the old Guzzi pistons I've had my paws on either were stamped ASSO or MONDIAL. 

Would those higher compression pistons be a bad thing? That is quite the dome on those. Nice opportunity to build a hot V7Sport.

Title: Re: Asso Pistons
Post by: czakky82 on December 01, 2021, 02:10:02 PM

I ended up with the gilardoni set. I’m keeping her mostly stock. I don’t know how much power I’d want with drum brake…

Title: Re: Asso Pistons
Post by: moto-uno on December 01, 2021, 05:33:20 PM

  Good point , with the drum brakes  :thumb: . Peter