crane Lifters

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Jan 2, 2009 | 03:39 PM

white95birdta

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From: Northville, MI

crane Lifters

I was recently given a brand new box of crane 99377 lifters and was wondering if they would be of use on my LT1 build. if not if anyone knows what application they are for i would love to have the info on these things. thanks! kevin

Jan 3, 2009 | 07:27 AM

gsdave

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According to Summit's website, they're hydraulic flat tappet lifters for a SBC. You could use them in your LT1, but it would be a serious downgrade from the stock hydraulic roller.

Jan 3, 2009 | 08:55 AM

Michigan Skip

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Quote:

Originally Posted by gsdave

According to Summit's website, they're hydraulic flat tappet lifters for a SBC. You could use them in your LT1, but it would be a serious downgrade from the stock hydraulic roller.

So, you're saying he can use flat tappet lifters with a roller cam?

Jan 3, 2009 | 09:14 AM

gsdave

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No, I don't believe I said that anywhere.

If he felt compelled to use the lifters (I'm not sure why anyone would), he could use a flat tappet hydraulic cam in his LT1. Of course, he'd probably want to go with a carb and regular distributor at that point because I'm not sure how he'd drive the optispark unless a drive pin was added.

Jan 3, 2009 | 09:18 AM

RamAir95TA

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From: South Jersey

Quote:

Originally Posted by Michigan Skip

So, you're saying he can use flat tappet lifters with a roller cam?

Definitely not a wise idea. Hydraulic roller cams have steeper ramp rates that keep the valve at max lift for longer (hence why hydraulic rollers provide more HP). Flat-tappet lifters cannot withstand the increased ramp rates and, consequently, it would be pretty easy to wipe a cam lobe.

Hydraulic roller and flat-tappet combined is a BIG no-no!