Experience with anti pump-up lifters?

[ssdurango]

Has anyone swithched to anti pumpup lifters? Is it worth the money? If so, who makes them?

SSDURANGO:
89 S-10, 3.4, 11:1, 252 Comp Cam, 1.6 Roller Rockers, SI Valves, ported, 4.3 TBI, headman headers, 3 " Flowmaster Exhaust .

[sharkey]

RE: Experience with anti pump-up lifters?

when you are doing a performance build up, or even just a cam swap, its worth the money to put in good lifters. the ones in my motor are comp cams, crane also makes them.

[ssdurango]

Which lifters did you buy? I bought the "high energy" ones. They don't seem to be anti pump up lifters. I don't see any anti pump up lifters on comp's website for the 60 v6.

[geoffinbc]

No they probabally dont make them. But like I said you wont want them unless you are truly running a race engine that will normally operate above 5000.

High Energy lifters are great street lifters.

[TurboGTU]

Its either hydrolic or solid type. GM power manual recomends piddle valve lifters. Seal power PN# AT-992. Pure solid lifters are not recommended due to it leaking on the pushrod seat.

I'm not a fan of anti pump ups due to having different leak down rates down the stretch and some not pumping up when they should.

[blackbombshell95]

bty what would u recommend for my setup that i'm doing? for lifters.

[SappySE107]

has anyone looking into overboring the lifter bores and using LS1 lifters? I have no idea if its possible but you know the LS1 has an aftermarket.

[TurboGTU]

I don't see why we can't mod our "current" lifters. Seen some aftermaket lifters with a Pin hole in the bottome center to oil the cam lobe. Looks better than our "sometimes I oil the cam..sometimes I don't" slot. I've seen them just loading the sping where it has .01 to go and machen a new locking clip there so it would be a sub hydrolic lifter..but only pumps up for that .005-.01. Or just take out the check ball and keep the spring in there.

I would think it would be kinda ifffy to bore out our lifter bores as there little space between them. Care to be the first?

[SappySE107]

Probably not if they are too close. I don't know though, its been a while since I starred at lifter bored in the block.

[geoffinbc]

bty what would u recommend for my setup that i'm doing? for lifters.

Just run a lifter from Comp Crane or GM. All will do an excellent job. By changine fromone brand to another you wont notice any difference. But don't run a fast bleed or anything like that

[your_I.D.]

Rhodes lifter will modify any hydralic lifter. (if it can be dissassenbled) To act just like a regular Rhodes lifter. Set of 24 lifters for the DOHC motor was $125.00+ shipping. So I'd imagine 12 would be around $70.00+ shipping. With a week turn around time.

[SappySE107]

I wonder how that would work out with my 48 gram lifters. Very interesting Did you notice any difference?

[EspanolaGuitarista]

If you can modify...

a rhodes lifter then wouldn't it be possible to run a 220° cam and smog it too? (By the way the degree sign is alt+248.) I read they decrease duration by 10° at low rpm.

[your_I.D.]

I haven't tried it on the 3.4DOHC. I have run them in a radical SB chevy that wouldn't idle in drive with stock lifters. Changed over to a set of Rhodes lifters. Vacuum at idle went up and would idle in drive. Made it very streetable as a daily driver.

[torq455]

i had rhodes lifters in my 66 GTO. they helped, but the side affect was a little noisy when warm at low rpm. still, maybe worth it if you have a big cam.