Plenum gasket glueing

[SharkPilot]

After replacing my injectors I just installed the gaskets dry. They are White Racing gaskets. Should I have used some sort of sealant? The car is running great.

[Chris_32212]

i saw some plenum, TB, and IH insulator plates for sale at Exotic Muscle. does anybody know more about these? the claim was that the insulate heat better than a regular gasket which would keep the plenum cooler to keep the air charge cooler. anybody used them before?

Chris

[jonszr1]

chris they might help some . but for the price i personally wonder if they are worth it . once the engine compartment gets hot heat soak takes over. at least thats my take on it . randy woods makes them as well as underdrive pullies, as well as thermastates for our cars .

[Chris_32212]

Originally Posted by jonszr1

chris they might help some . but for the price i personally wonder if they are worth it . once the engine compartment gets hot heat soak takes over. at least thats my take on it . randy woods makes them as well as underdrive pullies, as well as thermastates for our cars .

i questioned whether they would actually help much also, thats kinda why i was asking about them. just to see anyone had any experience with them. last thing i want to do is spend money on products that dont come thru on their claims. if anyone has used these, please let me know if you think they are worth it or not.

Chris

[UKZR1]

Originally Posted by SharkPilot

After replacing my injectors I just installed the gaskets dry. They are White Racing gaskets. Should I have used some sort of sealant? The car is running great.

The plenum is ported for a 368 so the gasket needs to be trimmed quite a bit and I cant afford for it to move around at all.

I found this product - Loctite 534, that too comes in a lip stick style tube and sounds like a similar product to the one mentioned.

[A26B]

Originally Posted by UKZR1

The plenum is ported for a 368 so the gasket needs to be trimmed quite a bit and I cant afford for it to move around at all.

Just an FYI here..... The plenum gaskets I make have 37.5mm port dia., so no need to cut gaskets to fit ported engines. They still retain a narrow port divider and can be used on stock port size as well. They are available in the 0.030" thickness, same as OEM, and ).042" thickness if preferred.

About the 1/4" phenolic spacers; I ran them on my car for awhile and doubt there is any appreciable gain. Makes the alum vac tube on the driver side fit poorly and also means you now need 2 sets of plenum gaskets. Worth the money? I don't think so.

[Chris_32212]

Originally Posted by A26B

Just an FYI here..... The plenum gaskets I make have 37.5mm port dia., so no need to cut gaskets to fit ported engines. They still retain a narrow port divider and can be used on stock port size as well. They are available in the 0.030" thickness, same as OEM, and ).042" thickness if preferred.

About the 1/4" phenolic spacers; I ran them on my car for awhile and doubt there is any appreciable gain. Makes the alum vac tube on the driver side fit poorly and also means you now need 2 sets of plenum gaskets. Worth the money? I don't think so.

thansk for the info on the phenolic spacers. didn't realize that i would also need a second set of gaskets. gasket thickness of .42 if preffered? why would that be preferred? terribly curious. thanks again

Chris

[A26B]

Originally Posted by Chris_32212

.....thickness of .42 if preffered? why would that be preferred? terribly curious. thanks again
Chris

From my perspective, the 1/32" (0.031") thickness is just fine. User preference on the 0.042" thicker gasket. I just make them available.

[Chris_32212]

i guess my question is, why would someone prefer the thicker gasket?

Chris

[LoTu5]

Originally Posted by Chris_32212

i guess my question is, why would someone prefer the thicker gasket?

Chris

Sometimes when there has been extensive inlet work to the plenum the heat distorts the mating surfaces with the IH's and the thicker gaskets help with a better seal.

A26B, good to know you have these available.