LS1/LS6 lifter question?

[deputydog]

I building a somewhat radical carburated LS motor. 6.0 Iron block, solid roller, 15to1,etc,etc. I have heard the LS motors have oil pressure problems with certain roller lifter designs. A few people are running a lifter by Morrel and said it fixed the oil pressure problem. Anyone have any opinions or experience on the topic?

My block is bronze bushed if that is a concern.

Thanks

[Jay Allen]

The Morrel is about the only game in town for that deal. I only do a few LS-x cams because I choose not to do them. But the few I have done coupled with what the birdies tell me leads you to the Morrels.

Good Luck!!!

[LTLHOMER]

Had comps with pressure problems switched to morels and have been fine since.

[68Bird]

I only do a few LS-x cams because I choose not to do them.

Why is that Jay? The LSx is the baddest sb motor on the planet, imo. If and when I decide to sell my BBC and go to a SBC, it will definitely be an LSx platform. Just curious.

Craig

[deputydog]

The person I bought the block from also gave me a set of crane LS1 lifters with just a few pases on them. He said he had "oil pressure" problems but a new LS6 oil pump fixed it. I dont take anyones "word" when it comes to used parts.
Another LS1 racer told me with the bronze lifter bores I should not have any oil problems with any lifter.

Now, should I run the cranes I have or fork out a few for the Morrel's?

[LTLHOMER]

The person I bought the block from also gave me a set of crane LS1 lifters with just a few pases on them. He said he had "oil pressure" problems but a new LS6 oil pump fixed it. I dont take anyones "word" when it comes to used parts.
Another LS1 racer told me with the bronze lifter bores I should not have any oil problems with any lifter.

Now, should I run the cranes I have or fork out a few for the Morrel's?

I have stock lifter bores...I don't know if there are problems once the bronze lifter bores are installed and what not.

[68Bird]

You may just have to make some measurements on the block/lifters to see if they'll work or not.

[deputydog]

Stock lifter problems wont help, I'm refering to solid roller lifters. Its a lifter design problem I'm refering to on certain solid roller lifters. Ive heard of problems with the comp solid rollers dont know about the crane

[Jay Allen]

Why is that Jay? The LSx is the baddest sb motor on the planet, imo. If and when I decide to sell my BBC and go to a SBC, it will definitely be an LSx platform. Just curious.

Craig
And you'll be one of the few I help. I dislike the "overall" mentality of those guys. Now notice I said "overall". Yes that is a stereotype and it does NOT apply to everyone. But everywhere you go, "What did it dyno"? That is the #1 question that pisses me off. I have NEVER seen a dyno go down the track. I have seen good engines loose power (significant power too) on the *dyno* and go much quicker downtrack. Try explaining that one to a guy who doesn't get it.

Back to the original question. The Morel lifter is a very nice piece. However I was told by a pretty high end LS-x guy that the problem of oiling lies within the block. The Morel is a band aid if you will.

Good Luck.

[deputydog]

What is the oiling problem within the block that you here about? Is it the way the oil passages are drilled or is it something that can be corrected?

[LTLHOMER]

Stock lifter problems wont help, I'm refering to solid roller lifters. Its a lifter design problem I'm refering to on certain solid roller lifters. Ive heard of problems with the comp solid rollers dont know about the crane

I said stock lifter bores...not stock lifters. I have run the comps that had the problems and now the morels. The problem with the comps is that the oiling holes were drilled all the way through and let way too much oil go to the top end which starved the mains. That was attempted to be bandaided by more restrictive pushrods but even that wasn't a very good fix. I have since switched to the morels and now run a normal orifice-sized trend pushrod with no oiling problems at all. Comp has since fixed the issue supposedly in their new batch since it wasn't them that manufactured the lifters, they just design them.

[LTLHOMER]

And you'll be one of the few I help. I dislike the "overall" mentality of those guys. Now notice I said "overall". Yes that is a stereotype and it does NOT apply to everyone. But everywhere you go, "What did it dyno"? That is the #1 question that pisses me off. I have NEVER seen a dyno go down the track. I have seen good engines loose power (significant power too) on the *dyno* and go much quicker downtrack. Try explaining that one to a guy who doesn't get it.
Good Luck.

I agree with you 100% on this. The internet glory ls1 guys are the worst. And they never seem to put out at the track, just on the dyno and online.

[68Bird]

And you'll be one of the few I help. I dislike the "overall" mentality of those guys. Now notice I said "overall". Yes that is a stereotype and it does NOT apply to everyone. But everywhere you go, "What did it dyno"? That is the #1 question that pisses me off. I have NEVER seen a dyno go down the track. I have seen good engines loose power (significant power too) on the *dyno* and go much quicker downtrack. Try explaining that one to a guy who doesn't get it.

Back to the original question. The Morel lifter is a very nice piece. However I was told by a pretty high end LS-x guy that the problem of oiling lies within the block. The Morel is a band aid if you will.

Good Luck.

Lol....I'd agree with that to some extent. I'm pretty active in the LSx 'community'. Here's a prime example of the dyno mentality from my '01 T/A. Car made 420rwhp with ported heads and cam "A". Car ran 11.6 @ 119. Swapped to a slightly larger cam "B" to better take advantage of the ported heads. Dyno'd 440 rwhp with an overall increase in rwtq and hp over the entire powerband. Best I could get down the track was 11.6 @ 118, same air, same 60'.

These engines are very impressive though. To make the power it does, have very nice street manners, and still get 28-29 mpg is awesome. And the aftermarket support is increasing everyday.....thats exciting to me.