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#1
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Ram Air Manifolds and IAII block
Would like to know if anyone has had any issues using Ram Air exhaust manifolds with aluminum head on a IAII block? Mine seam to touch the block and wondering if it might cause some of my overheating.
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#2
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I have a friend who planned to run those on an aluminum block, but if I remember correctly, there was interference with the freeze plugs. He ground them down, but still ended up going with headers.
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"If the best Mustang is the Camaro, the best Camaro is actually the Firebird" David Zenlea |
#3
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Yes I had to use different freeze plugs and still had to do some grinding
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#4
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Same issue here with the super long branch round port manifolds. I ended up using a pair of round port header flanges as spacers. Got them new off Ebay years ago.
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#5
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I had to dent my headers for the freeze plug on my IA iron block driver's side.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#6
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You can angle mill The Long Branch manifolds so that when they bolt on the angle away from the block slightly but other than that I don't know what you would do besides other clearancing
Sent from my SM-N986U using Tapatalk
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Build it Right Build it Once!!! Just another Engine Builder from the Northwest lol |
#7
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lots of grinding
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2008KRE Q16 Winner 2014 atco raceway doorslammer winner 86 grand am tube car 8.95 @152 455 eheads solid flat tappet cam Hoffman Racing building and racing Pontiacs for 35 years |
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