GEN VI, Dart, and World all have lifter bores that are .220" taller then the old Gen IV's. This takes a tallerlifter. Some mfgs sell 2 lengths of lifters and the taller ones are more expensive. The Morel lifter is designed to go in both blocks and use std length pushrods that the Gen VI uses.

Chris

They've gone up

The Cranes also are set up for stock pushrod length.

What do the Morels run and do they have tie bars or flats for the GenVI retainers?

Dave

Check price with RMbuilder. The Morels are the link bar style and are not lift limited like the dogbone type.

Chris

Crane dogbone lifters are not lift limited under normal max hyd roller lifts to .650+. The stockers are OK to .570 (and then a little )
The Cranes at .632 (.371) still were up .050 out of the retainer or so at the base which would translate to over .700 lift if you dare
They are a very clean setup with minimal moving parts but I didn't realize they got so expensive.
The Morels may be the way to go here.

Do you have a contact number for him?

585 654 8583. Ask him how much more the Morels are worth power wise over the competition.

Chris

Thanks for the number. Spoke with Bob and going to order a set Monday.

well it is good to learn new information on this OSO forum. the cam that i'am using is 600 lift with the stock lifters, what type of problems might be lerking for me with the stock lifters?? over 100 hours now and no problems yet, am I on borrowed time?? it pulls good to 6100 let me know what to look out for sure don't need any expensive meltdowns.

Yes i am, but it's a gen 4 block, no problems so far.

The GM are the worst lifters to use. Look at the bottom of the lifter that holds the axle on the shaft. It is very thin. Look at a Crane, much beefier.

Crane uses GM stock push rods. I used Comp Cams and they are very good as well, but I had to buy new pushrods which was a bummer.