first off i would like to thank everybody for the advice on my engine install. i will use it. now for what seems to be endless problems, i have what i would call a very bad miss match from my aftermarket heads to my current headers which are 1 5/8 primary tubes. if the photos come out like i think they will you will be able to see what i'm talking about. the measurement on the head is quite a bit larger than the header opening which in the words of my racer friend would be unacceptable to him. the green gasket is a template i made of the head opening and is against the header and shows where the exhaust will be banging against the header opening before i ever get out of the driveway. the dial calipers show the measurements of both head and header. difference to me is a bunch. if anybody has a set of 1 3/4 primary tube headers sitting around maybe you could get a measurement and that could be the fix. i would like to use what i have but i also don't want to give up a lot of tq and hp before i ever get going. these are pro comp electronics cast iron with 1.94 and 1.50. nothing special,just new.
miss match ports
- Thread starter denny
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Who opened the heads up? It looks like a pretty amateur hour job. Who removes metal at the short side floor? that is just dumb and now there is nothing to seal to.
By new you mean "new to you?"
By new you mean "new to you?"
http://procompelectronics.com/pce28...le-plug-as-cast-bare-cast-iron-cylinder-head/
You are either welding up and modifying the headers, building adapters, or trashing the heads and starting over.
You are either welding up and modifying the headers, building adapters, or trashing the heads and starting over.
$191? I guess you get what you pay for.
CNC? Really? CNC makes straight lines. It's like Bender the robot was doing the blending and he'd been drinking.
sorry about that. it's going in my 81 malibu and it's a 388 sbc. don't know the make of headers
gonna check and see if 1 3/4 primary tube will cover. we'll see then if i'm out of options.
don't know where you got the 191 or the cnc from, was not in my post. bought them years ago for a very mild street motor.
The $191 is the price on the link motorheadmike posted. That ad in the link says CNC is an option and the picture they show is a head with EVEN LARGER (but atleast straight) exhaust ports so the picture must be of the CNC head.
Those heads don't appear to be designed for a street car. Even with larger diameter headers I don't see them sealing along the bottom for very long.
Those heads don't appear to be designed for a street car. Even with larger diameter headers I don't see them sealing along the bottom for very long.
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