Or 4 if you have it setup

Yes I agree, intakes are being worked and target rpm is 5800-6000 is where I want existing
Props to spin, that's the goal. Can specs won't even be talked about until I have flow numbers but I can say one thing I he info from a very highly respected engine builder today say that there's absolutely no reason to have the lift I have, kinda interesting to hear from him, I won't say who due to keeping some things private.

I know but its much more fun this way.now wheres my stick,,I need to beat the horse some more.

[QUOTE=Black Baja;4506349]I'm not a rookie. We check that stuff while the motor is being assembled. A flashlight in the oil galley hole tells that story. These lifters come tested from Morel. It takes two revolutions of the motor to adjust pre

Didn't say you were a rookie , but if a lifter that takes 9 months to get , and you have a bucket full that wont pump up . I'd say either the lifters are a POS , or you got other issues .
Just me but if these lifter issues are common I would say the Mongrel lifters are not top of the line.

So based off your last few post you obviously have no experience with Hydraulic cams in a high performance marine environment. I have to ask if you don't have the experience why would you give advice towards something you obviously know nothing about.

The Morel lifters are bad azz when they work. However it's a crap shoot if you are going to get a good set or not. Based on my experience if the Morel's were 100% reliable right out of the box and availability was not an issue its a no brainier. And this is talking about an application that we are going to run an aggressive lobe that requires solid roller type spring pressures. But given the availability issue along with the initial parts reliability. A solid lifter starts looking better and better.

$880 a set and a bucket of bad lifters is acceptable ?

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I see they discontinued these:

CHEVY BB HYDRAULIC ROLLER LIFTERS - DISCONTINUED
Set# Pair# BodyD RollD Description Avail
5475 5925 0.842 0.750 DISCONTINUED 07/21/2016
MERC MARINE DOG BONE .842D HYD ROLLER N\A
6427 6469 0.842 0.750 DISCONTINUED 07/21/2016
MERC MARINE DOG BONE .842D (HLT) HYD ROLLER N\A

Nope no experience at all , I'm just good with Google .................................

Which hydraulic lifter do you use in your offshore builds? Have you found any signs of instability after sustained 6000, 6200, 6500 rpm useage?

I do agree, that if you do some searching, you will find some morel lifter issues out there for sure. Of course, for the past decade, they have been supplying lifters to Lunati, Howards, Isky, Crower, Erson, PBM, Bullet cams, Cam Motion, Herbert Cams, Madera, Straub, and a bunch of others. Summit Racing, and Jegs, probably the two biggest retailers in our hobby, have probably sold tens and tens of thousands of those bbc morel based lifters, between the lunati, howards, isky and crower label. They were basically everywhere. Recently, isky and crower have switched to johnson. How long ago was that? For years, the "GO-TO" bbc hyd lifter, was morel on all the forums. From yellowbullet, speedtalk, chevelles.com, offshoreonly , speedwake, BUTTFREAKS, and serious offshore. Marine builders like eddie young, Zul, phaff, teague, chief, and many others were using those lifters for years without issue.

Of course, I do understand the complaints about them. You certainly will have stories of issues, when your product is in the hands of many. Aside from product failure itself, you also have the things that cannot be verified, like lifter bore clearance, cleanliness of engine builds, and overall machine/assembly questions. The tiniest piece of debris, can clog a lifter orifice and wreak havoc. I know I've taken a few engines apart that someone else put together, and finding little bits and pieces of silicone rtv floating around and random dirst is always good for the lifters.

I did have a morel collapse on me. It was a pain in the azz, had to pull the blower, intake, distributor and everything off to replace it. 80 bucks and 2 days later, I had a single pair of lifters here from summit racing, and had it back together. That particular set of lifters, did suffer from about 20 quarts of lake water pumped into the crankcase , due to a split cylinder wall on a shortblock assembly I had purchased, that was never sonic checked. Kinda hard to blame the lifter, when the engine was filled with raw lake water and debris. Anyhow, since then, they have not skipped a beat. Thier time will be up though after another season or two. At that point, I probably will go with a solid setup.

fwiw, you can get the morel 4603 lifter series, for under 700 dollars a set from various sources.

Tim stay hydraulic and focus on reliability, the 1mph your looking for will easily come from induction and exhaust upgrades without sacrificing valve train instability

Unleashed is run harder and longer then any boat participating in this tech section (with videos to prove), and my morel lifters have been flawless :-)

And pick a camshaft that isn't designed for a motorhome powerband. Adding lobe lift, does nothing if the valves are opening and closing at the wrong time.