Well I've been racking my brain all nite...... hit the Net and the flipped through all the catalogues that I have and still need some questions answered!!! I'm gonna do a HSR swap in the spring and have been trying to get parts collected......... & I'm looking for a thermostat housing for it....... I know that I can do the Mr. Gasket PN 2661 with a rad hose adapter kit, but I personally think that it looks pieced together. Has anybody used a CSR Swivel Thermostat Housing PN 170-911(JEGS) PN CSI 911 (SUMMIT)?????? It has a 1.25" diameter like the TPI units. I'm just not sure if it's long enough to reach the rad hose, as the TPI housing is so long/ rad hose short....... Any help would be appreciated....... (I've tried to check out all the pics that I could find) Thanks

Im not sure what paert number I am running but it is a mr gasket one that was on the shelf at the local parts store. it worked perfect for me and all I had to do was get a new hose and then trimit to fit better. I do not like the idea of a housing that swivals. its just one more spot for water to leak from from. I seem to remember something about a housing for a TBI engine or something. I could be wrong since it has been a few years now

I also just grabbed a mr. gasket piece. I think I got a rad hose for a TBI car. works good.

i found it hard to find a thermostat with the stock TPI sized opening and one that pointed in the right direction.

i just used a basic thermostat from ebay and summits radiator hose adapter kit. works great so far

Thanks everybody for the help....... Great responses!!!!!!
I love 3rd gen.org for all the help that you can find here... I don't know what I would do without it

GTA Sammy!!!!!

you want mr gasket part # 2661

I found an adjustable aluminum t-stat housing on ebay for about $18. It rotates 360' and has an o-ring seal. It's made for 1 1/2" hose but my stock 1 1/4" upper fit with a little effort. Just point it in the right direction and bolt it down. One note- the lower port on the throttle body where the coolant flows through had to be cut off. I had bypassed it anyway so it didn't matter to me. Cheap, easy, looks good.

i wouldnt get the swivel housings, or the Oring type sealing ones, im throwing in a HSR for my new HSR383 and im goin wit the mrgasket one but it will only look peiced together if u do it the cheap way, u could make it look niece with a stainless pipe and rubber ends etc.

the reason i say dont get the swivel housings/Oring housings is that my bro just stuck one on his 68vette with a 509 merlin and right off the bat is started leaking around the swivel and the Oring, he even used a paper gasket with the Oring and it helped but it still leaked. he swaped it out for a non swivel and it hasnt leaked since this was a month ago when he finished the swap, to me it just seems like another peice or part that will leak or fail and if u bust a leak on the road and overheat will kill your motor.

i kno the mrgasket is an Oring base seal but i will be putting a paper thick felpro gasket as well. just my .02

my o ring seal has been fine, but i used rtv all over it too to be safe

haha thats what im sayin tho... i wouldnt just use the Oring, i would use paper or something... rtv is good but its messy.

Carquest part number is W1595.

The thermostat housing from Carquest is Cast iron, uses a real gasket (no leaking o-ring crap), and it doesn't warp like the Mr. Gasket piece of junk.

Do yourself a favor and get the cast iron one.

I used a t-stat housing off of a 4.3 vortec(had it laying around) and tbi upper hose. stay away from the o-ring it will cause you trouble down the road.

Thanks guys....... I like the Vortech t-stat idea....... if my Mr gasket unit doesn't work well I know what I'll be lookin for.......... I don't think we have carquest up here

I would like to know about the thermostat thousing from CARQUEST PN# W1595. Can somebody give me a cross reference pn# so i can get the thermostat housing thru Napa. I am having nothing but headaches with the o-ring chrome style waternecks, both Ive tried still leak! Much appreciated.

bump on thet last post. Need to know also about what year thermostat housing off the vortec and what model. thks..

Vortec's run from 96-2000 in the SUV's and 3/4-1 ton trucks, and 96-99 in the 1/2 ton trucks

Thanks dude. Much appreciated! BTW, beautiful Camaro.

WELL I checked the thermostat housing on my 2000 Blazer that wont work.

I had used the CSI swivel one when I did my swap a few years ago. It leaked after about 6 months. So I completely disassembled it (it was a unit with a screw in rad hose fitting) and rtv'd where the swivel portion mated to the bolted down housing, used a paper gasket and some GM gasket maker and it never again leaked. The GM silicone is AWESOME stuff but pricey. (I only used it because I got a bunch cheap while I worked for GM).

I bought that Mr gasket 2661 neck and used the radiator hose i got today through my parts store Mazza's.

part# "GDY 62269"

Stock TBI thermostat housing, and a stock TBI upper rad hose, fits perfect