[Jay S]

Originally Posted by lust4speed

As far as price and quality, I was told that the lower priced lifters like the Morel and their re-brands were cast body while the top quality Comp, Crower, Johnson, and Hylift Johnson had tool steel bodies. The reason to spend more money was that the cast body lifters were not up to the task of high RPM usage and were more for drivers that were never punished. I do see the adds for high end stuff bragging about tool steel.

I”ll go out on a limb here. But I think that is actually backwards to what I know about lifters. Morel is actually the one that has some very high end short travel HR lifters with billet lifter bodies, just not for Pontiac’s. Comp, Hylift, Johnson’s and the regular morels are all a cold formed steel alloy, none of them are billet steel. Morel has a floating axle (after 2015), they may actually be the leader on the axles assembly as far a durability. It seems like it is more machining for tight bleed rates and check valve design are where they fall short.

[tom s]

Pontiacs have been running SBC roller lifters for 50 years or more.If someone had a in at Morel you might be able to get them to make a set of the tool steel lifters and just changing the link bars?Tom

[Schurkey]

Originally Posted by 64speed

Engine Masters did a show on the 4/7 swap. Advantages were nonexistent in their application.

Nonexistent? Or just "sloppy and incomplete test procedure" mainly intended to get clicks and not promote REAL knowledge, and so they didn't find--or even look for--all the potential advantages?

The 4/7 swap moves the heat load of the 5/7 cylinder pairing from the rear of the block (hottest part) to the front of the block (coolest part--right next to the water pump).

A proper 4/7 & 2/3 swap like the LS firing order, removes load from the overloaded #4 main bearing, and puts it on #2 which would otherwise be under-loaded. In fact, that was why the LS engine uses that firing order--to even-out main bearing loading.

Originally Posted by Iggy

Where would one look to having a cam nitrited?

When it was me, on an Olds 455, I had Lunati take care of it. Way back then, I think it was an additional $110. It about doubled the cost of a flat-tappet cam. No doubt it's far more, now. Thanks, F. Joe Biden.

[Jay S]

Originally Posted by tom s

Pontiacs have been running SBC roller lifters for 50 years or more.If someone had a in at Morel you might be able to get them to make a set of the tool steel lifters and just changing the link bars?Tom

Morel could definetly do that, certainly not a cheap option. But they rebox their lifters for a lot of companies, would think it would not take much for a company to get that done. Morels billet bodies are easy to spot, they have open bodies around the wheels. They are rated for over 500 lbs springs pressure and 7K RPMs, they are the direct competitors for the Isky HPx made by Johnson.

[ponchjoe]

Looks like I need to change the title of this thread to a lifter discussion or unsubscribe, You guys are blowing me up here LOL

[PAUL K]

Originally Posted by ponchjoe

Looks like I need to change the title of this thread to a lifter discussion or unsubscribe, You guys are blowing me up here LOL

Sorry someone had to address the misinformation/disinformation and cheap fakes

Seasons Greetings to you and your family!

[ponchjoe]

Originally Posted by PAUL K

Sorry someone had to address the misinformation/disinformation and cheap fakes

Seasons Greetings to you and your family!

Yea, there’s a lot of misinformation out there on pretty much everything Paul. All you can do is read/research and try.

Merry Christmas to you and yours as well.

[Jay S]

Originally Posted by ponchjoe

Yea, there’s a lot of misinformation out there on pretty much everything Paul. All you can do is read/research and try.

Merry Christmas to you and yours as well.

You all have a Merry Christmas!

You can always call or text me if you find yourself in a corner with a question. I enjoy power terrain stuff.. If I don’t know the answer I may at least know someone that does.

[ponchjoe]

Originally Posted by Jay S

You all have a Merry Christmas!

You can always call or text me if you find yourself in a corner with a question. I enjoy power terrain stuff.. If I don’t know the answer I may at least know someone that does.

I will definitely take you up on that Jay.

[PontiacMatt72]

There are plenty of nay-sayers, as well as success and failure stories, for either option (roller or flat tappet).

For whatever my opinion is worth, I prefer a roller. Solid or hydraulic. For solid roller, Maintenance is simple, and probably not needed much. The biggest downside to a roller (imo) is the expense. But If your budget allows for it, that’s the route I would go.

I ran a solid roller in a street car (400 stroker buuld), and it was great. I currently have a HFT (2802) in my street 400 (because we built it for dad, and he wanted to keep it “cheap”), and there’s an annoying ticking sound in the valve train on the passenger side (even-numbered cylinders) of the block. I fear it’s a lobe wearing, but haven’t dug into it yet so maybe not. Have tried adjusting it out but no luck. Runs fine so letting it ride for a while. When I have to replace it, I’ll go with a roller.