Mate, without any reference material please choose another motor.
All of cosworths kers era V8's were built to a strict set of dimensions set out by the fia.
They had a 98mm bore, 106.5 spacing, the bottom of the motor to centreline is set to 65mm? The timing gears will most likely have a diametral pitch of 8mm or 7.62mm (0.300") which was a pretty standard thing for f1 motors. The TJ and the CA had near identical conrods, there are technical papers in pdf format with technical analysis of many aspects of the CA motor family.
You still can buy parts at memorabilia stores online.
Brians insights of the TJ probably exhausted the last stock of available parts online.
https://www.google.com/url?sa=t&source ... 9YFMMU
Valve sizes, angles, lift, conrod length expressed as percentage.