I am in the process of doing the LT1 intake conversion. I've searched the forums and the LT1 Intake site and can't find any information on what intake manifold to cylinder head gasket should be used for the conversion. I would really appreciate some help with part numbers from someone who has succesfully performed the conversion. My heads are the standard 1.23 x 1.99 stock port SBC Chevy iron heads. The LT1 intake has 1.130 x 2.050 ports. Thanks in advance for the help. I appreciate it!

 

take a look at Lt1intake.com good luck on your project.

 

Just use whatever your car calls for stock. Either the fel-pro 1256, 1204,1205, etc.