Pure Stock Thread - Foreign Makes

Dan Fahey · 05-08-2013, 11:52 AM

Using Stamped Rockers required a bit of coaxing.
In the 80s the MacElroy Cam was the hot solution for the 350/255.
To make the cam legal you had to bang the Rocker Stud in forward to kill Rocker Ratio to meet Lift.
Or you ground and lapped the tip to kill ratio.
I know..because I got bounced for too much lift!!

Jeff Warren put brand new GM Stamped Rockers on my engine.
For my particular set up my Blueprinted Cam Card the lift is listed based on a 1.5 ratio.
Had to rebuild that engine because of a hurt piston becaue of a bad Injector.
Putting it back together measured the cam Lift and was a tad under the Stock Lift because the Stamped are around 1.47 Ratio.

Now the LS Engines have Roller Rockers and the Specs should be more precise than mine.

Thanks Brister yes..Bobby Zlatkin's 1974 Nova..Beautiful Car!
Sometimes his picture pops up on Class Racer

D

New List
H/PS 1972 Chevelle - Jim Reynolds
H/PS 1987 Malibu Dennis Roberts - Ohio
H/PS Mustang Steve Klacik - Pennsylvania or Ohio
B/PS 2001 Corvette Steve Kaufmann - Texas
B/PS 2001 Camaro Gary Burr - Virginia
G/PS 1995 ImpalaSS Wagon Corbitt Marshburn - sold to racer in AL
P/PS 1988 Mustang Rob Butler and Record Holder NC
G/PS 1995 Impala SS my car - Maryland
B/PS 1993 Camaro Corbit Marshburn
H?PS 1983 Camaro CJ McDonald
H?/PS 1983 Camaro Danny Waters
E/PS 1974 Nova - Bobby Zlatkin
G/PS 1995 Impala SS Wagon Corbit Marchburn - sold to racer in AL

Remembering Pure Stockers from last year
C/PS 1994 Camaro Richard Golliday
H/PS 1957 Chevrolet William "Poochie" Langston
I/PS Mustang

05-08-2013, 11:52 AM	#10
Dan Fahey VIP Member Join Date: Oct 2008 Posts: 2,128 Likes: 1,084 Liked 184 Times in 113 Posts	Re: Pure Stock Thread - Foreign Makes Using Stamped Rockers required a bit of coaxing. In the 80s the MacElroy Cam was the hot solution for the 350/255. To make the cam legal you had to bang the Rocker Stud in forward to kill Rocker Ratio to meet Lift. Or you ground and lapped the tip to kill ratio. I know..because I got bounced for too much lift!! Jeff Warren put brand new GM Stamped Rockers on my engine. For my particular set up my Blueprinted Cam Card the lift is listed based on a 1.5 ratio. Had to rebuild that engine because of a hurt piston becaue of a bad Injector. Putting it back together measured the cam Lift and was a tad under the Stock Lift because the Stamped are around 1.47 Ratio. Now the LS Engines have Roller Rockers and the Specs should be more precise than mine. Thanks Brister yes..Bobby Zlatkin's 1974 Nova..Beautiful Car! Sometimes his picture pops up on Class Racer D New List H/PS 1972 Chevelle - Jim Reynolds H/PS 1987 Malibu Dennis Roberts - Ohio H/PS Mustang Steve Klacik - Pennsylvania or Ohio B/PS 2001 Corvette Steve Kaufmann - Texas B/PS 2001 Camaro Gary Burr - Virginia G/PS 1995 ImpalaSS Wagon Corbitt Marshburn - sold to racer in AL P/PS 1988 Mustang Rob Butler and Record Holder NC G/PS 1995 Impala SS my car - Maryland B/PS 1993 Camaro Corbit Marshburn H?PS 1983 Camaro CJ McDonald H?/PS 1983 Camaro Danny Waters E/PS 1974 Nova - Bobby Zlatkin G/PS 1995 Impala SS Wagon Corbit Marchburn - sold to racer in AL Remembering Pure Stockers from last year C/PS 1994 Camaro Richard Golliday H/PS 1957 Chevrolet William "Poochie" Langston I/PS Mustang Last edited by Dan Fahey; 05-08-2013 at 12:09 PM.