Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
Is this the same as using the “LS style” springs in the vortec heads to get more lift than what the heads are capable of?
I'm using a Spectra premium with ACDelco ICM distributor. Anymore, all of the after market distributors I looked at simply say their gear is steel. I didn't wanna take a chance so I bought the melonized gear for ~108 - ouch!
I thought that was only for LS engines, ha ha. We did look at the cam bearings and they looked OK
No problem, I maintain a spreadsheet showing all my orders by part number from vendor and manufacturer, description, notes, and of course, costs. If this thread helps anyone (it helps me with others' input for sure), I'm glad to do it.
No problem, I maintain a spreadsheet showing all my orders by part number from vendor and manufacturer, description, notes, and of course, costs. If this thread helps anyone (it helps me with others' input for sure), I'm glad to do it.
Good point, maybe I ought to hide that column
The only good flat tappet lifters are the GM hardened foot. Some of the cam cores are just garbage now too. Helping a friend, I started to install a flat tappet cam a year ago. Looking at the lifters they had zero curvature when placed bottom to bottom. I put the cam in place and the lifters, when I started adjusting the valvetrain the lifters did not spin at all. Needless to say that cam came out, I started seeing the issues with both cam and lifters and they went back to the vendor. Bought a different brand of cam and GM Delco hardened foot lifters. It broke in fine and has 15K on it now. One other thing that was off on the junk cam was lobe width and positioning. The lobes were narrower than I have ever seen and the lobes were in the dead center of the lifter bores. I even stabbed the distributor just to make sure. Changed to a quality cam and the lobes were both wider and offset in the lifter bore. All of the lifters were spinning even rolling the engine over by hand. The second cam was not a Comp cam, it was a Trickflow if you catch my drift on who the vendor was for cam number 1.
I have had 2 different cast core rollers, from different companies and in different engine families entirely start to come apart. Both were run pretty hard and may have experienced valve float. So it may not entirely be the cams fault. That being said if it was valve float that did them in, they are not very tolerant of it.
