Exhaust manifold gasket
12-10-2015, 11:55 PM
#1
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Join Date: Oct 2015
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Exhaust manifold gasket You guys, I have speed engineering lt1 headers from eBay and I am looking to replace my gaskets now. I was about to go about buying the Fel-pro pn #1406 for them, until I realized the port holes. Does it matter if the headers are circle holes, and the gaskets are not? What is anyone's gasket recommendations to whoever has these headers or so, and what I can do in the future to prevent these fat *** leaks.
12-12-2015, 05:47 PM
#3
TECH Fanatic
The gasket has to seal the flange, if the 1406 covers the header flange then use it. The header bolts need tightened between heat cycles 4-5 times. Just check the bolts daily to make sure they are snug before you start the car.
