What lifters are you guys running that have big open pressures (1,100+)?
Extreme Zone™ EZ-RollMAX™ Roller Lifter [3172RH937EZMAX] - $1,510.00 : ISKY Racing Cams, Do It RightISKY Racing Cams Extreme Zone™ EZ-RollMAX™ Roller Lifter [3172RH937EZMAX] - Extreme Zone™ EZ-RollMAX™ Roller Lifter Body Dia. 0.936in. Brg. Dia. 0.850 in. Std. Length Steel A Body Centerline Lightweight Versioniskycams.com
Contrary to what Mr JAFO says,Can you elaborate? What is your experience with the Isky stuff that makes you say this?
And still no issues with BAM? In your opinion, when using an old stock block (cleveland), even if the lifter bores measured O.K. would it still be necessary to bush the lifter bores to get proper oil control with BAM, or Morel lifters?I don't .....
I've recently been using BAM lifters..
Sizing is spot on.
I agree with Ron. If the bores are good and clearance within spec, no need for bushings.And still no issues with BAM? In your opinion, when using an old stock block (cleveland), even if the lifter bores measured O.K. would it still be necessary to bush the lifter bores to get proper oil control with BAM, or Morel lifters?
You are living in the distant past.Contrary to what Mr JAFO says,
Isky has a sizing problem and can't seem to grind a lifter body straight or round, I just took a new set out of a sbc with the EZ Max bushed lifter, $1250 set of lifters and they measured .0025 on taper and out of round
Top measured .902 bottom measured .8995
Not good for lifter bores or oiling.
When you try to have lifter bore clearances of .0015- .0018 how man you manage that with a lifter like that?? You can't.
I stand by my statement, you don't want them.
You should check out BAM's lifter with the steel DLC coated bushing....Jesel or Morel. Spend it once, or spend it twice.
I will say I wasn't a fan of the .040 wide by .200 long slot the ez max bushed lifter had to feed the bushing, plus a .045 hole on each side of the wheel.... Huge... HUGE oil leak....Thanks Ron and Scott, that's what I needed to know. I'm not against bushing, It's actually a great way to control the oil to the top end on a cleveland, I was more concerned with oil feed with high lift cams and reduced base circles and the lifter oil hole coming out of the oil galley and certain lifters needing bushings to oil properly. I've had an issue with my oil pressure dropping/fluctuating if I hold the rpm at 3000 for 30 seconds or so using Isky red zone needle bearing lifters (solid roller). Possibly windsor lifters rather than cleveland specific? When I prime it all pushrods oil without turning the engine. I also had a needle fail after 10+ years and with the sizing issues rather than rebuild them I'm looking at getting GS, Morel or BAM, I assume Jessel will be too costly for me. I'll be around 800 lift and 780 lbs.