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Lotus Europa Forums => Classifieds Forums => FS/WTB: Europa Parts and Stuff => Topic started by: 1970S2 on Monday,June 06, 2022, 07:52:07 PM

Title: F/S new 77mm CROSS FLOW PISTON KITS with rings , piston ,cylinders, pins X-FLOW
Post by: 1970S2 on Monday,June 06, 2022, 07:52:07 PM

I have 2 NEW OLD STOCK brand new sets of piston kits complete for 77mm engines  X-FLOW , these are AE brand have a very slight raised dome,  $600 a set  plus shipping, ...located in Picton Ontario

Title: Re: new 77mm PISTON KITS with rings , piston ,cylinders, pins
Post by: s2europa on Tuesday,June 07, 2022, 07:47:39 AM

Are these the Lotus pistons with the raised crowns on the pistons? Thanks.

Title: Re: new 77mm PISTON KITS with rings , piston ,cylinders, pins
Post by: Bud on Tuesday,June 07, 2022, 11:13:57 AM

Are any of these for the big valve engine

Title: Re: new 77mm PISTON KITS with rings , piston ,cylinders, pins
Post by: jbcollier on Tuesday,June 07, 2022, 01:34:42 PM

Stock Lotus Twin Cam bore is 82.5mm (3.25").  These pistons are for a Renault engine.  77mm pistons are for the 1565 engines (1470 use 76mm pistons).  Whether they are the correct HC pistons we don't know yet.

Title: Re: new 77mm PISTON KITS with rings , piston ,cylinders, pins
Post by: 1970S2 on Tuesday,June 07, 2022, 03:58:37 PM

pistons are for the X-Flow head , Lotus used Renault engines up till late 1970, I will post pictures this week , I also have a piston kit for Fuego engine, 79mm

Title: Re: F/S new 77mm CROSS FLOW PISTON KITS with rings , piston ,cylinders, pins X-FLOW
Post by: GavinT on Wednesday,June 08, 2022, 09:42:34 PM

Interesting pic in the OP.
I don't think I've ever seen a cross-flow piston that didn't also have a similar tapered section opposite the squish allowance one. I wonder what compression ratio they might produce.

What diameter are the gudgeon pins and are they press fit or the fully floating variety?

Title: Re: F/S new 77mm CROSS FLOW PISTON KITS with rings , piston ,cylinders, pins X-FLOW
Post by: 1970S2 on Thursday,June 09, 2022, 12:11:14 PM

21 mm , not free floating , sorry I have no part number for the kit