Quote:
Originally Posted by Paul Workman
Hmmmm.... Just curious what your interim expectations are, as it would appear you must be contemplating a staged approach - doing the heads later, yes? I see you siamesed the intake plenum, but left the primary port of the IH more or less at the original size. Is yours a 90 or a later model? (As I see what appears to be a bit of the primary injector boss remaining - not necessary on the earlier LT5s.)
Lots of ways to skin a cat. I'm just curious what the "master plan" is.
P.
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It's a 90. At this time I'm not planning to do the heads. I've opened the primary ports up to 36mm half way down then started gradually tapering them down to 33mm so they match the stock primary head port. If I opened the primary up to 36mm all the way through with the stock 33mm head port it would cause a serious missmatch and would be like hitting a brick wall for air flow. I've removed as much of the injector bosses as I could without having to break into the fuel injector bore to much. The plenum and injector housings that I used to copy what I did to mine from were uglier than mine and still had a little left of the injector bosses. They weren't totally gone. And that cars base dyno was 335rwhp. After those P/P plenum and injector housings were put back on in combination with Jeal headers Mgana flows and dr gas and a good tune it dynoed at 409rwhp. If I get somewhere in the ball park of 385rwhp I'll be happy. If it ends up being more than great.
But if I decide to have the heads done I'm just going to go for a 368 build. And I'll let one of the builders do that.
