Header compatibility? [message #270780] |
Thu, 29 January 2015 18:53 |
quadracerx1
Messages: 207 Registered: April 2013 Location: Puyallup, Washington
Karma: 1
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Senior Member |
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Hi...
Are the 403 and 455 headers the same? I got a set of 403 headers but my coach has the 455?
Thanks for the help...
Steve
75 26' GMC Glenbrook
Puyallup, Washington
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Re: Header compatibility? [message #270792 is a reply to message #270780] |
Thu, 29 January 2015 20:35 |
bwevers
Messages: 597 Registered: October 2010 Location: San Jose
Karma: 5
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Senior Member |
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Applied GMC has different headers for the 455 and 403.
I was told that the 403 has smaller exhaust ports.
Bill Wevers GMC49ers, GMC Western States
1975 Glenbrook - Manny Powerdrive, OneTon
455 F Block, G heads
San Jose
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