ScramCannon Posted October 13, 2016 Share Posted October 13, 2016 Hi folks, As I have the intake manifold of my GC8 being painted, thought this might be a good opportunity to put some phenolic spacers in to reduce heat transfer from the heads to the manifold. Anybody have experience? Worth it? Issues with mounting or the raising of the manifold by the thickness of the spacer? Cheers Adam Quote Link to comment Share on other sites More sharing options...
stants Posted October 13, 2016 Share Posted October 13, 2016 Think @savagebulldogs has done it, Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
Sandals Posted October 13, 2016 Share Posted October 13, 2016 5 minutes ago, stants said: Think @savagebulldogs has done it, Sent from my SM-G930F using Tapatalk Don't think there is much that man hasn't done to his engine Quote Link to comment Share on other sites More sharing options...
kayzarh Posted October 13, 2016 Share Posted October 13, 2016 55 minutes ago, Sandals said: Don't think there is much that man hasn't done to his engine dats uncle clive for ya back to the point, http://www.iwsti.com/forums/2-5-liter-litre-factory-motor/138032-phenolic-spacer-really-worth.html3 Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted October 13, 2016 Share Posted October 13, 2016 Lol . I haven't got any before and after intake temp comparisons but the inlet manifold physical feels cooler than it did without them . I went for 8mm ones as I'm running a custom inlet and fmic pipework . The only issue I found was my v1 classic header tank bottom pipe seemed a bit stretched but the smaller thickness ones should be fine. 1 Quote Link to comment Share on other sites More sharing options...
ScramCannon Posted October 13, 2016 Author Share Posted October 13, 2016 9 minutes ago, savage bulldogs said: Lol . I haven't got any before and after intake temp comparisons but the inlet manifold physical feels cooler than it did without them . I went for 8mm ones as I'm running a custom inlet and fmic pipework . The only issue I found was my v1 classic header tank bottom pipe seemed a bit stretched but the smaller thickness ones should be fine. Cheers for that. Do you use a gasket either side of the spacer, or does the spacer itself act as the gasket? Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted October 13, 2016 Share Posted October 13, 2016 There's 2 types on the market, 1 type you have to put a oe gasket either side of the spacer (4 inlet gaskets needed) and I bought mine from advanced automotive and they have o rings provided instead of gaskets Quote Link to comment Share on other sites More sharing options...
ScramCannon Posted October 13, 2016 Author Share Posted October 13, 2016 Spot on, cheers! Quote Link to comment Share on other sites More sharing options...
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