Distributor question 2.7L

[kandhmfg]

Posted in engine forum, but thought I'd try here too.

After case failure on a 2.2L bored for 2.7L cylinders, I am rebuilding my 2.7L motor using a later 7R case from a '76 car. I just noticed the distributor I was running will not work. Where the distributor fastens to the case for timing adjustment is taller in nature than the old case was. It actually extends up, versus just being a stud next to the distributor port.

The engine has 90mm RS P/C's 8.5:1 (but true compression may be higher because it still has 2.2L heads), heads are ported to 36mm intake, stock exhaust ports, mod S-cams, running 40mm webers, it was a screamer before.

What type of distributor should I be looking for? If I run the standard distributor for the 2.7L without the vacuum advance will that be okay?

Any thoughts, suggestions are welcome.

Thanks,
Erik

[moneymanager]

Others will correct me if I am wrong, but I believe any distributor will work. BUT, you need to get it set up for your motor. THe timing curve for an RS spec motor is different from that of the stock 2.7, or the 2.2, so the car will run with almost anything, but you will be leaving power on the table. So get it recurved soon.

[Steve@Rennsport]

2.0 & 2.2 distributors have 27mm shafts and the 2.4, 2.7 (and later) distributors have 30mm shafts so that early one will not work in the 7R engine case.

You've already discovered that they use different clamping methods,..

I'd suggest that you find a 2.4 or 2.7 one and have it checked and re-curved to suit.