View How To Identify Chevy 6 Cylinder Engines Background. I need to know how to tell the difference without getting out the rule tape and slide rule. 03 / ta= could be either '65 230ci or '66 250ci
Machined pad in front of the passenger side cylinder head.
This was the quality built 261 cubic inch six cylinder! Four bolt main blocks are desirable in high performance applications because the extra strength of. 2) what the displacement is. All 144/170ci engines have a 3.50 inch cylinder bore, while the 200/250ci have 3.68 inch cylinder bore.