Would anyone have any data on the intake port dimensions, port layout (distances between port to port and face angle) and intake bolt locations of a cathedral port LS1. Looking at doing a custom intake and this data would greatly help the cause. Attached photo for example purposes.
Cheers
LS1 Intake Face Dimensions
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Pontiac310
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LS1 Intake Face Dimensions
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Walter R. Malik
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Re: LS1 Intake Face Dimensions
LS bore spacing is 4.4", (111.8mm).
http://www.rmcompetition.com
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Specialty engine building at its finest.
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Pontiac310
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Walter R. Malik
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Re: LS1 Intake Face Dimensions
If all the ports are the same then the distance between them would also be 4.4" at the vertical center-line; you need to locate only one.
Sorry to be a nuisance; it will never happen again.
http://www.rmcompetition.com
Specialty engine building at its finest.
Specialty engine building at its finest.
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Pontiac310
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Re: LS1 Intake Face Dimensions
Sorry didn't mean to come across sarcastic. I do understand your thought process but just wanted the exact measurements to be certain that they were not designed such that the port centre line is not on the bore centre line. Sometimes this assumption can catch you out. Thanks againWalter R. Malik wrote: ↑Sun Sep 16, 2018 12:32 pmIf all the ports are the same then the distance between them would also be 4.4" at the vertical center-line; you need to locate only one.
Sorry to be a nuisance; it will never happen again.