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helping a friend install a performer intake on a 440.according to the instructions u use the valley pan and then add edelbrock gaskets on the intake side.do u guys use sealant on the front and back of the valley pan?do this sound right.thanks
Before you get too far with the install, make sure the intake and head mating surfaces are machined to matching angles. You can tell by setting the intake on the clean heads with no gaskets, make sure its setting as evenly on the heads as possible and running a feeler gauge around all of the ports. If anything over about .005 will fit between intake & head, you'll have to get the manifold angle corrected or get real creative with paper gaskets. I ran into this on my 383 & had vacuum leaks no matter what I did. Had a local machinist square it up, & it seals great with super thin paper gaskets on each side of steel tray. The 383 had stock heads, interestingly enough, my 500 motor with edelbrock heads fit perfect right out of the box.
'68 Bee 383/TF/Factory Air...high school sweetheart
'67 GTX Clone project,500 six pack,Hemi4-speed,Dana
05 Dodge Viper, 505 V-10, 6-speed Tremec
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