Heat chamber for intake manifold

[Deleted User]

Since I didn't want to hijack the Pertronix thread, I thought it would be better to ask this question on a new thread.



The exhaust manifold on my 202 motor does not have the butterfly in it to force the exhaust flow of rear cylinders through the intake manifold. Since I can count on one hand the number of times that I have driven the car when the temp was below 40F, can the heat chamber of the intake be blocked off entirely or would it be better to restrict the flow by drilling a hole (5/16",3/8", etc..) in the block-off plate and allow some heat into the chamber?



While I'm asking questions, does anyone have a good source for hinge pins for the doors? The ones for my '39 are 2 7/8" L X 5/16" D. I tried Bob Drake Reproductions but they said that Ford only used 1/4" pins.



Kevin C.

Uncle Josh

I used a long bolt from the hardware store on the 49. Get one long enough to have a good long shank before the threads start, and cut it off to length. I'd get a grade 8 for the better steel.

Ol racer

I cant honestly say to block off the heat on a 202 but anyone with headers usually has the heat blocked off to the intake..Mine is a little rough running when first started but drivable...



I also used hardware bolts on my '37 hinges then ground the heads to appear almost original.

tigermoth

i blanked off mine completely on my '35. i have run her in 20F weather with no ill effects. regards, tom

Geoff

I took the butterfly right out of my Jet, as it rattled, and leaked fumes around the pivot. In it's place, just a bolt right through and washers under the head and nut. Will probably burn through eventually, but pretty easy to keep a spare in the trunk in case of that. Haven't had any warm-up problems, but then we live in a temperate climate.

Geoff.