What are the best plenum gaskets?

[Jagdpanzer]

Jerry's 3/64" gaskets has my vote

[secondchance]

Jerry's 3/64". I use Gaskacinch to glue the gasket to the plenum and use X-acto knife to port match before bolting it to the IH.

[fletchusmc]

I voted Jerry's 3/64. Ordered them Saturday morning, got them today (Monday). Feels like a weak coil or a coil is going bad so will be pulling the plenum. From reading the recommendations I went with these.

[Johnny5]

Thicker, you can get coolant leaks from thinner ones. At least i did

[Paul Workman]

Originally Posted by Johnny5

Thicker, you can get coolant leaks from thinner ones. At least i did

Hmmmm..... In 7 years of maintenance and porting, etc., I have never had a leak w/ prolly half dozen of Jerry's gaskets. And, as a rule, I re-use them at least once, if not twice. However, I DO use Permatex around the coolant port for added insurance. My porting makes the web between the intake runner and the coolant jacket rather thin. But, as I said: No problems!! Just sayin....

[jss06c6]

I'm on my third set from Jerry. I replace with each plenum pull. 3/64" each time. I used a brand new set to scribe my plenum, injector housings and a set of IH gaskets for my primary intake runners on my heads on my '91 when I ported them. So, my engine is matched to Jerry's gaskets! Perfect results.. high quality product. I'm installing them on a customer's 29,000 mile 1990 right now..

Sent from my XT1585 using ZR-1 Net Registry mobile app

[XfireZ51]

Originally Posted by Paul Workman

Hmmmm..... In 7 years of maintenance and porting, etc., I have never had a leak w/ prolly half dozen of Jerry's gaskets. And, as a rule, I re-use them at least once, if not twice. However, I DO use Permatex around the coolant port for added insurance. My porting makes the web between the intake runner and the coolant jacket rather thin. But, as I said: No problems!! Just sayin....

Yep. Permatex #2. And now I will be doing same to the crankcase vents.