SRM Big Bore Kit 750cc – BSA A65

Part Number : SRMSP3KIT1 Categories: , , ,
(2 customer reviews)

£ 963.90£ 1.003.89 +VAT if applicable

BSA A65 Big Bore Kit

5.00 out of 5
Part Number : SRMSP3KIT1 Categories: , , ,

750cc SRM Big Bore Kit for BSA A65

Get some extra power for your BSA A65 with the SRM Alloy Big Bore Kit.

Suitable for BSA A65 1970-72, 1962-69 will need to select the 5/16" - 3/8" base stud conversion kit in the options above

Kit consists of;

  • Alloy Big Bore Cylinder Barrel (weighs just 4.1kgs)
  • Pistons
  • Chrome moly steel high strength pushrods
  • High tensile head bolts
  • Solid copper head gasket

 

Available in 8.75:1 or 10:1

BSA A65 Big Bore Kit Manufacturer Description

Big bore kit includes Alloy cylinder 4.1kgs with spun cast iron liners , pistons complete, set of chrome moly steel high strength pushrods, set of special high tensile head bolts, solid copper head gasket, Compression is approximately 8.75:1 with thick gasket.  Also available is a base stud kit for converting the early cases to take the 3/8 studs, our part number SRMSP3H , stud kit is stainless steel studs and stainless steel nuts and washers. Big bore kit is 79mm standard and can be rebored to 79.5mm.
Suitable for use with standard crank and conrods and standard head, it is advised that cylinder head is gas flowed with big valves.

Note that crankcase mouth will have to be be machined out slightly to take the larger bore spigots and also clear the cam follower guide spigots.

2 reviews for SRM Big Bore Kit 750cc – BSA A65

  1. Guest (verified owner)

    The cylinder looks great, but it's not fitted yet. I plan to have the bike ready in the spring. The reason I bought it from you and not SRM is that I do not trust them. I friend of mine had an A65 900 ccm engine with Nova 5 speed gear box built by SRM. He had to pay full price for the gearbox even though it was one of two prototype gearboxes made for testing. SRM got one of these to do the testing and have not payed a penny for it. It is also different from the production production gearboxes as they have been developed further. I know this because me and an other friend got the first 2 production gearboxes from Nova very late in July this year. Later we received updated shift drums from Nova that we fitted.

  2. Guest (verified owner)

    The cylinder looks great, but it's not fitted yet. I plan to have the bike ready in the spring. The reason I bought it from you and not SRM is that I do not trust them. I friend of mine had an A65 900 ccm engine with Nova 5 speed gear box built by SRM. He had to pay full price for the gearbox even though it was one of two prototype gearboxes made for testing. SRM got one of these to do the testing and have not payed a penny for it. It is also different from the production production gearboxes as they have been developed further. I know this because me and an other friend got the first 2 production gearboxes from Nova very late in July this year. Later we received updated shift drums from Nova that we fitted.

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