4 valve head designs

grumpyvette · Dec 18, 2009

a really well designed and properly manufactured 4 valve single or double overhead cam head could easily boost the hp potential of the chevy v8 engines a great deal.

http://www.billzilla.org/2v4v.htm

http://www.gofastnews.com/board/technic ... ncept.html

http://www.araoengineering.com/Chevy/chevybb.htm

bbc

BB%2032v%20Offshore%20Head%204.5%20bore%20011.jpg

BB%2032v%20Offshore%20Head%204.5%20bore%20013.jpg

2: 1.84 In. valves BB Chevy Intake Ports
BB 32v. 2: 1.840 IN. valves Pontiac Pro Stock 2.38 In. valve
0.1 94.4 0.1 70.8
0.2 206.5 0.2 147.5
0.3 312.7 0.3 230.1
0.4 375.24 0.4 277.3
0.5 448.4 0.5 342.2
0.6 472 0.6 395.3
0.7 494.42 0.7 436.6
0.8 494.42 0.8 448.4
2: 1.6 Ex. valves BB Chevy Exhaust Ports
BB 32v. 2: !.6 EX. valves Pontiac Pro Stock ! o Stock 1.9 Ex. valve
0.1 88.5 0.1 59
0.2 182.9 0.2 118
0.3 259.6 0.3 182.9
0.4 318.6 0.4 241.9
0.5 381.14 0.5 300.9
0.6 424.8 0.6 330.4
0.7 430.7 0.7 342.2
0.8 430.7 0.8 344.56

SBC

http://en.wikipedia.org/wiki/Overhead_camshaft

http://www.merkurencyclopedia.com/Motor ... _head.html

http://xlforum.net/vbportal/forums/show ... ?p=2263412

http://books.google.com/books?id=mm8oM7 ... q=&f=false

grumpyvette · Jan 14, 2010

BRAAP POSTED THIS INFO

Overhead cam and multi valve heads used on traditional domestic V-8s! Seems like an interesting topic of discussion, yet not seen on this forum with any sort of depth or seriousness that aI was able to uncover.
I recently stumbled across a pic of the Moser SBC DOHC heads and like the younger generation of today, was immediately distracted and dropped everything else I supposed to be doing at the moment to dig little deeper, for no other reason than curiosityâ€¦
In searching this forum I wouldâ€™ve bet money this topic had been covered to some degree in the past but couldnâ€™t find anything with any real substance. (Possibly my search techniques genuinely suck, which Iâ€™m sure someone will exploit...) ;-)

I'll start out with the probably the most well known of aftermarket offered traditional V-8 OHC heads, the Moser/Harvey Crane Jr, DOHC heads!
DOHC cam, 4 valves per cylinder heads for the SBC short block. Dyno tested to as much as 11,000 RPM back in 1970! :shock:

Mr Richard Moser bio;
http://richardmoser.com/

Harvey Crane Jr, was instrumental in the development of these heads;
http://www.harveycrane.com/moser.htm

The HotRod magazine article, 4 pages worth;
http://www.cadvision.com/blanchas/54pontiac/ChevyEngines.html

Next up, I stumbled across this very interesting concoction using the vintage small journal SBC 265, (road draft crank case breather system). ;-)
Has all the appearance of DIY from a small shop/garage. Like it! :2thumbs:
Note the cool cam oiling.

Anyone, (TonyD,) have any info/history on this set up? Possibly some old school Bonneville or drag race effort?