High idle - no vacuum leak - ZR-1 Net Registry Forums

A1990 · 02-05-2017

Chances are with your 368 the DAG was long gone before you cleaned the throttle body. As it was probably enlarged to 63mm.

The other guys are correct, you are not going to find a LT5 throttle body unless its at Jerry's or on eBay, etc.

The good news is Marc will rebuild your throttle body, if indeed that is the source of the vacuum leak, and have it back to you within a couple days. I had Marc rebuild mine. I pulled it off and sent it to Marc. He had it the next day and rebuilt it, then put in back in the mail and I had it the next day. I was down for about 3 or 4 days total.

Good luck.

02-05-2017	#10
A1990 Join Date: Dec 2003 Location: Grand Island NE Posts: 1,512	Re: High idle - no vacuum leak Chances are with your 368 the DAG was long gone before you cleaned the throttle body. As it was probably enlarged to 63mm. The other guys are correct, you are not going to find a LT5 throttle body unless its at Jerry's or on eBay, etc. The good news is Marc will rebuild your throttle body, if indeed that is the source of the vacuum leak, and have it back to you within a couple days. I had Marc rebuild mine. I pulled it off and sent it to Marc. He had it the next day and rebuilt it, then put in back in the mail and I had it the next day. I was down for about 3 or 4 days total. Good luck. __________________ Dennis Fierstein 90 ZR-1 #2562 Atomic-Z ZR-1 Net Registry Chairman of the Board ZR-1 Net Registry Treasurer