Rotary Car Club - View Single Post - How old is my 13-B?

Rotary Evolution · 10-06-2013, 11:03 AM

it is probably a 3B REPU casting block with the short primary runners, the housings look like 76-78 year castings. i believe even the 76-78 model year REPUs still retained that early 3B small port design.

there should be a cast number/letter on the front iron under the water pump with either a 3B or a Y, Y is the tall primary runner casting for the cars.

10-06-2013, 11:03 AM	#13
Rotary Evolution rotaryevolution.net Join Date: Feb 2011 Location: Las Vegas, NV Posts: 248 Rep Power: 15	it is probably a 3B REPU casting block with the short primary runners, the housings look like 76-78 year castings. i believe even the 76-78 model year REPUs still retained that early 3B small port design. there should be a cast number/letter on the front iron under the water pump with either a 3B or a Y, Y is the tall primary runner casting for the cars. __________________ http://rotaryevolution.net Last edited by Rotary Evolution; 10-06-2013 at 11:06 AM.