Help id parts from Thimble* *DROME cars engine

Some of the car engines used mufflers. The shim could've been used to block off SPI by lifting the cylinder. In addition, I know some of the cylinders and I think it might be a #6 was used on the QZ/ QRC engines which didn't require the shim because the exhaust port was cut higher in the cylinder.

Cox put that spacer on some of its cars Corvette, Ford GT 40, Chaparral are a few.

Inside new no rust litle dust bit of hair inside crankcase
Engines redy To run in the alpha Roméo future new owner

It first y found wit timing chim new engine new home

Tink of seling one now y have two if some one interested

the parts named riser came wit casing only ? No parts number its rare stuf very old y need timing chim for new engine build that parts Not exact size y nead thick chim To supres spi in tuned modified engines y build just tired of modify coper seal