Correct Rad Cap?
 

I want to make sure I'm running the correct radiator cap. What does the group consensus call for with s 305 A V-6 mated to a hydra-matic? Part number is good as well.

Thanks
Jake

Re: Correct Rad Cap?
 

When I got my '60 3/4 with a 305A in 1970, it had a cap with a broken spring, hence no pressure in the cooling system.
I am still using that cap with no ill effects, in hot or cold weather, that I can tell.

Re: Correct Rad Cap?
 

That's cool, I just did not know I'd a 15lb cap was right

Re: Correct Rad Cap?
 

IIRC a 7lb cap should be factory. At least that's what I've got in my notes.

Re: Correct Rad Cap?
 

Ok, that's what I'll go with. I have the overflow tube and am trying to figure out a decent reservoir tank/bottle, what y'all got?

Re: Correct Rad Cap?
 

I found a reservoir from a toyota corolla fits perfectly between the radiator and the battery area. No bolts needed, its sized perfectly to pressure fit right in there. Holds a good amount too. No symbols or anything, it's just a white tank.

Re: Correct Rad Cap?
 

I have 7lb cap as well and I just got one of those generic over the counter units at AutoZone.

Re: Correct Rad Cap?
 

I have a 13 pounder on my 305E. Seems to work fine.

Re: Correct Rad Cap?
 

[
What year corolla?

QUOTE=FetchMeAPepsi;63894]I found a reservoir from a toyota corolla fits perfectly between the radiator and the battery area. No bolts needed, its sized perfectly to pressure fit right in there. Holds a good amount too. No symbols or anything, it's just a white tank.[/QUOTE]

Re: Correct Rad Cap?
 

I had to search my build thread again. I couldn't remember the year. It was a 1992 Toyota Camry, not a corolla. Oops!

Here's the post about it with a pic of it installed.

http://6066gmcclub.com/showthread.ph...yota#post48940

Re: Correct Rad Cap?
 

Well that looks perfect and I think I see a part number too.
Thanks Fetch!

Re: Correct Rad Cap?
 

Thanks

Re: Correct Rad Cap?
 

Welcome guys. I'm happy with it. And if I ever get tired of it I don't have any holes or anything in my fenders. I just have to swap it out for whatever makes me happy at the moment.