Opinions on aftermarket Cylinder Heads - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Lonnie@Texas-Speed · 12-16-2011, 04:17 PM

Quote:

Originally Posted by S3XPanther

Also Matt, what if you're running the LG cam in an L99 (obviously with an LS3 conv.)? The L99 pistons already have a relief cut on the pistons.

Unfortunately, those reliefs are on the exhaust side, where we already have plenty of clearance. It doesn't do much for those wanting to run more intake duration :(

S3XPanther · 12-16-2011, 04:26 PM

Quote:

Originally Posted by Matt@Texas-Speed

Unfortunately, those reliefs are on the exhaust side, where we already have plenty of clearance. It doesn't do much for those wanting to run more intake duration :(

S3XPanther · 12-17-2011, 07:35 PM

Andy@Livernois · 12-17-2011, 08:10 PM

Quote:

Originally Posted by Matt@Texas-Speed

You're in pretty much the same boat as AG383 above. Did you (and anybody else running these camshafts) ever check piston to valve clearance? I'm somewhat shocked that 5th gen owners are running this tight of clearance in their combos and not raising cane about it!

our 2r-max has .100/.100 on it, WAY more than many off the shelf grinds we have seen. It is at minimum recommended tolerances, but is way safer than many cams people are using on here.

S3XPanther · 12-17-2011, 08:21 PM

Quote:

Originally Posted by Andy@Livernois

our 2r-max has .100/.100 on it, WAY more than many off the shelf grinds we have seen. It is at maximum recommended tolerances, but is way safer than many cams people are using on here.

So what kind of milling would be required for that cam, Andy?

Andy@Livernois · 12-17-2011, 08:48 PM

I couldn't speak for TSP on clearance with their heads, as the valve could be sunk compared to stock, or could be raised compared to stock, changing what PTV would be. We base all of our clearances on a stock, unmodified head.

S3XPanther · 12-17-2011, 08:53 PM

Quote:

Originally Posted by Andy@Livernois

I couldn't speak for TSP on clearance with their heads, as the valve could be sunk compared to stock, or could be raised compared to stock, changing what PTV would be. We base all of our clearances on a stock, unmodified head.

So running your cam on stock heads would not require any modifications such as milling? Awesome!

12-17-2011, 07:35 PM	#17
S3XPanther by Odeon Drives: '12 SS/RS A6 IOM SOLD, '13 1LE IOM Join Date: Nov 2011 Location: Good question Posts: 1,707	__________________ "It works 60% of the time, every time." "Some say it's a waste of time, others say it's an incredible waste of time." "The ultimate measure of a man is not where he stands in moments of comfort and convenience, but where he stands at times of challenge and controversy." 2013 IOM SS/RS - 1LE. Born 5/6/2013 (1 of 32 1SS IOM 1LE's)

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12-17-2011, 08:48 PM	#20
Andy@Livernois Drives: 1987 Buick Regal Turbo-T Join Date: Sep 2009 Location: Grand Blanc, MI/Dearborn Heights, MI Posts: 452	I couldn't speak for TSP on clearance with their heads, as the valve could be sunk compared to stock, or could be raised compared to stock, changing what PTV would be. We base all of our clearances on a stock, unmodified head.