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The Five-Cam Small-Block Chevy Engine
Started by
Bob Riebe
, Dec 06 2024 21:22
9 replies to this topic
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#2
Wuzak
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Posted 06 December 2024 - 23:20
So the normal camshaft is only used to drive the accessories?
#3
404KF2
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Posted 07 December 2024 - 02:15
Maybe the fifth one is just a shaft, with no cams.
#4
Catalina Park
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Posted 07 December 2024 - 03:31
Sort of like saying the Twin Cam Lotus engine is really a triple cam.
#5
Bob Riebe
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Posted 07 December 2024 - 04:20
The engine has been around for 50 years and this is the first time Anyone called it a 5 cam engine.
#6
Bloggsworth
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Posted 07 December 2024 - 16:11
Sort of like saying the Twin Cam Lotus engine is really a triple cam.
Well, the third cam did drive the fuel pump and distributor, it wasn't totally redundant... Oops! On second thoughts, that was the jackshaft - God, I'm getting old, fancy forgetting that.
Edited by Bloggsworth, 07 December 2024 - 18:31.
#8
Greg Locock
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Posted 10 December 2024 - 21:56
Mike Kimberley's Esprit had a powersteering pump driven off the camshaft (wuss). By the logic of this 5 camshaft engine that means he had a single camshaft engine. Boring war story I was in the workshop one Saturday morning just after we'd had photo ids issued. Saw this bloke wandering around looking at things, no ID. So I challenged him. It was MK, luckily he saw the funny side. Incidentally he was the only CEO I've ever seen eating the works canteen.
Edited by Greg Locock, 10 December 2024 - 21:59.
#9
Lee Nicolle
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Posted 14 December 2024 - 04:50
So the normal camshaft is only used to drive the accessories?
yes
#10
Lee Nicolle
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Posted 14 December 2024 - 05:03
Having watched the videos from these blokes a 4 cam SBC, a 12 cyl LS and various flatheads the engines are made for the salt and hi speed which they do fairly well.
As for anything else really no. A 4 cam SBC would stuggle to make the power of a Nascar or Sprintcar engines. Still narrow use but less so.
GM had the Lotus head SBC in the late 80s,, it was a lemon even in those days. And OHC engines need a bigger hole to fit in as well.
Look at the ginormous Coyote, sure they go ok though stock they dont compare witha LS/LT. But they are bloody huge.And not light either. Part of the problem with V8 Stupidcars. Parity, the Chevs are carring ballast on top of the engine to mimic the Ford lump. And the Ford whingers are always saying the Chevs have more power, even after dyno testing, aero testing etc etc.
