#1
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SBC Cam Selected
The top end of my 355 is apart, long story...bottom line I need a new cam...this was just confirmed yesterday, by finding a cupped lifter.
Anyways, here's the engine: 2 bolt 1974 block stock bottom end with rebuilder dished/browed pistons about .032" in the hole RPM intake, 600 holley vac sec 1-5/8" mid length headers 2-1/4" pipe to turned down glasspacks TH350 with 2000 stall About 9.8:1 static compression The heads are GM 601 heads off an early 80s 305cid...with a lot of porting. They still have stock 1.84/1.50 valves in them, and on my engine, with my old cam, were still pulling at 6400 rpms. That cam claimed good power from 2000-4800 rpm. It was a blue racer 284H, 218/218 .450/.450 @ .050 on 110 LSA. Really lazy lobes, too, but idled nice, and pulled pretty good over 6000, too. This new cam, the one I have picked to replace it is a Howard's cam. Maybe some of you guys from waaaaay up there in the Great Lakes has used them before. I have heard great things about their stuff. Made in the USA too. Right in Wisconsin. Anyways the cam: Grind # 110991 Street/Strip, Needs Headers, 4bbl & Low gears recommended Advertised Duration: 284/284 Duration at .050": 220/220 Lift with 1.5 rocker: .470/.470 LSA: 108 ICL: 104 Overlap: 68 degrees Requires 100# seat and 300# open, exactly what my heads have in them right now. It should have real good low end form the short duration and earlier intake closing, and the overlap should keep it pulling on the top end right? What do you think? |
#2
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Lets us know how it runs, looks like a good cam choice IMO.
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"Good people sleep peacefully in their beds at night only because rough men stand ready to to violence on their behalf."-Orsen Wells |
#3
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SBC350 L31 Vortec Heads pocket ported with stock valves, Comp Cams N+L79-H, .462/.468 valve lift, 229/236 duration @.050, 112LSA, 9.6:1 compression, Summit Stage One Vortec intake manifold, Holley 600cfm street carb W/ vacuum secondaries |
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