[Hooter]

After losing a Comp solid roller lifter yesterday, leaning towards going the bushed route and possibly upgrading to the larger 904. Doing a search on here, looks like the Isky has been the brand of choice. Is this still the best lifter to go with? This is in a street car that sees a lot of miles(drag week) and plenty of track time too.

[rompn63]

Isky gets the kudos for developing the bushing lifter. I went with Crower because I had a set with needles that I had them convert to bushings. I just put a set of Morel .904 bushing lifters in the War Chief, they look to be a quality piece.

[mysticmissle]

I.had crower convert my needles to bushing also. Keep in mind that slowbird has dyno proof that you will lose some power. But it's probably worth some piece of mind.

[mgarblik]

We use Crower Endua-max, (a bushing lifter) in the .937 size in the nitro engine. They are really tough and can be rebuilt, which we have done. Many on this board have used Isky with great success and I have no personal experience. Part of the reason is I never had the opportunity. As I have mentioned on this board many times, to us, an interest in a project and great personal contacts are an important part of our program. At the PRI on two separate occasions different years, we were met with a very cold shoulder by Isky. Lots of questions about why we were running a Pontiac engine, how they were junk, would never hold up in our application. All the typical crap that really turns me off. Crower was open and interested. That's a big reason why we use their parts. They also offer great service and have quality parts.

[John Langer]

Jesel makes a lifter for pontiacs. I use to break crowers ever 3-4 passes. I ran the jesel 4 years with zero issues.

[Hooter]

Thanks guys. I've got a set of Crower 842 lifters that could be rebuilt. Maybe I'll call them to see how much to convert them . Cam is only 730 lift with 245 on the seat.

[mysticmissle]

Want to say it's about 550 hooter

[tom s]

I have posed this question on Speedtalk with no answer.The NASCAR Toyota Cup engines run Jesels with needle bearings.My thought was if the bushings were better they would run them?Maybe not because of a small loss of HP?Tom

[grnmnstr]

Originally Posted by tom s

I have posed this question on Speedtalk with no answer.The NASCAR Toyota Cup engines run Jesels with needle bearings.My thought was if the bushings were better they would run them?Maybe not because of a small loss of HP?Tom

Probably because they change lifters after every race.

I have Isky .842s EZRoll EnduraMax. I have had them rebuilt once with needles and this last time with the bronze bushing. Never a problem. No lifter bore bushings either.

Sizeable cam with 1000 psi springs.

Next block rebuild I would like to go with the 904s or 937s, with a bigger cam core.

[Hooter]

Just called Crower. No more spring or cam that I run, they recommend bushing my old set. Looks like I'll go that route. $480 to do them.

[mgarblik]

John, are the Jesel lifters you run keyway or tie-bar? Also what diameter? That's fantastic service life. Would you be willing to share approximate open/closed spring pressure? Also approximate max RPM and valve lash you run. We have found wide lash, (over .022-.023") kills the lifter wheels pretty quickly. We only run .014" cold on the funny car and have had much better luck.

[65nss4spdGTO]

I use many products from Comp Cams, but I will not use Comps roller lifters.

Calvin Hill
Hill Performance
708-250-7420

[John Langer]

Originally Posted by mgarblik

John, are the Jesel lifters you run keyway or tie-bar? Also what diameter? That's fantastic service life. Would you be willing to share approximate open/closed spring pressure? Also approximate max RPM and valve lash you run. We have found wide lash, (over .022-.023") kills the lifter wheels pretty quickly. We only run .014" cold on the funny car and have had much better luck.

Tie bars, over 430 on seat over 1100 on the nose. .905 diameter, .025" lash hot. Motor saw 8600-8800 has seen 9000-9100.

[mgarblik]

Very impressive lifter life under those conditions. Obviously, you have great harmonic control to run the high RPM's with what must be a long push rod. We have been told the biggest issue for us on nitro is the initial load when the exhaust valve is cracked open while cylinder pressure is still very high due to the slow extended burn time of the nitro. We had to go to steel rockers for this reason also. We use all custom Jesel rocker gear, I will certainly talk to them at PRI. Our current lifters have been fine when we can keep the crap out of them from other catastrophes. Thanks for the info.

[60man]

Originally Posted by Hooter

Just called Crower. No more spring or cam that I run, they recommend bushing my old set. Looks like I'll go that route. $480 to do them.

I had mine converted. Like said I only have about 40 passes so far. Over the nose is 1,000+'so time will tell. I hate needles 😏

[Tom Vaught]

So does Comp offer a similar mod for their needle lifters at this time?

Tom V.

[GOSFAST]

Originally Posted by Tom Vaught

So does Comp offer a similar mod for their needle lifters at this time?

Tom V.

Hi Tom, Comp has the bushed lifters available also. We've used a few sets and no issues to date. Just got the first BBC set back for evaluation, all looks good! We know how to check the Isky's, Comp's probably check the same way!

These are fairly new from Comp.

Thanks, Gary in N.Y.

P.S. Not sure about having the original roller style changed to the bushing setup. Simple call to Comp would tell!

[Tom Vaught]

Comp can't be getting very good reviews when the "needle" solid roller lifters are failing on a deal like Drag Week. Drag Week is only a few actual drag strip passes at a handful of strips and a bunch more miles at less than typical (75+ mph) normal street driving today.

Tom V.

[tom s]

I think Johnson makes the Comp lifters.Tom

[Tom Vaught]

Tom S, I can see where Johnson might make the Hydraulic Roller needle bearing lifter.

Was not aware that they were making the solid cam roller lifter also.

Tom V.