I got a solid lift cam and i want to use hydraulic roller lifters with it.. Is it possible?????

thanks in advance,
John

NO!

how do you know , have you ever tried it?

Dennis is right - No you cannot use hydraulic roller lifters on a flat tappet solid camshaft. The hydraulic roller and flat tappet solid lifter camshafts use much different ramp designs and are made of different material. The roller cams are made of a much harder and more expensive metal.

ps. What solid cam are you using and why would you want to switch? Just curious.

------------------
68 Camaro, 383 small block with TH350 trans. 11.98's at 111mph and never trailered.

[This message has been edited by Eric68 (edited 12-08-2001).]

Dennis is correct in saying "NO"
because in addition to being made from different material (roller's are made from Billet steel), the lobes are designed diferently. A solid (or hydraulic) lifter cam lobe has a taper built into the actual lobe to rotate the lifter (which also keeps the cam from walking forward) as it pushes it up. Rollers are square shouldered to allow the lifter to roll smoothly and require a cam button at the front of the cam (between the cam gear and the timing chain cover) to prevent this movement.

There are many other differences but these are the most notable.

------------------
TONY
67 CAMARO R/S CLONE, 355/turbo 350, 200hp NOS,12 bolt,etc...

[This message has been edited by idoxlr8 (edited 12-08-2001).]

Thanks Eric and Tony,

John - along with the good info already given spring pressure greatly differs, roller cams require heavier spring pressure than flat tappets.

What did you expect to gain switching lifters? If you tell us what you're looking for as far as results and what you have, (more than just 430hp 350) the folks here will help with advice on how to achieve it...



------------------
...Dennis
"The '69 (http://chevelles.com/showroom/fine69_03.jpg), the '96 (http://chevelles.com/showroom/fine69_02.jpg) & the club (http://camaroslimited.com/)"

thanks guys on the info. I knew that you cant use hydraulic lifters on a solid and vice versis but I was just wanting to know what would happen if you did use the roller lifters with the solid lifter cam?
My cam is a rare Lunati remake of the Chevrolet 302 DZ cam. The specs are as follows 0.485/0.485 lift with 1.5 rockers, 114 lobe seperation, installed at 112 intake centerline. 254/254 degrees of duration at 0.050" lift. This cam is best used with 1.6 roller rockers.

IVO 15 IVC 59

EVO 63 EVC 11
If any of you guys have desktop dyno try this cam with some engine combos and you will be surprised. thanks
John

[This message has been edited by shroom93 (edited 12-08-2001).]

shroom93,

There is no rare remake of the old fashioned Big Duntov 30-30 fuelie cam! Maybe Lunati made a slightly one off of it but really it (the OEM) is just fine as stock. Imho. pdq67

A few years ago Lunati use to copy different cams on a Peterson grinder and sell them for a little less money to save people a few bucks (I'm being nice here) and they worked great. I have no idea if they sold one with the numbers posted, but it is possible.

<BLOCKQUOTE>quote:</font><HR>Originally posted by Toby Keen:
A few years ago Lunati use to copy different cams on a Peterson grinder and sell them for a little less money to save people a few bucks (I'm being nice here) and they worked great. I have no idea if they sold one with the numbers posted, but it is possible.<HR></BLOCKQUOTE>

little advise --roller--