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218/218 587/573 (1.65) (very slightly used) Hyd Roller Cam Forsale

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Blazer406

Mechanical Engineer
Joined
May 2, 2002
Messages
5,068
I have a custom ordered hyd. roller comp cams cam I ordered a year or so ago. It is a NON BILLET hyd roller cam. It uses the most agressive hyd. roller lobes comp has in their lobe catalog.... the "XFI" lobes as comp refers to them. It has the stock type nose setup just like the hyd roller cams full throttle sells.

NOTE: Intake lobe and exhaust lobe are slightly different design. This is the reason you see the lift numbers are slightly less for the exhaust.....even though the .050 is the same.

Specs are as follows:

Summary: 218/218 @ 0.050" lift with 114° lobe sep and cut straight up (114° intake centerline) Lift (1.55 rocker ratio) works out to .552 (intake) and .538 (exhaust). Lift (1.65 rocker ratio) works out to .587 (intake) and .573 (exhaust)

I ran this cam for maybe 100 miles on my motor that had oil pressure issues at hot idle....I am selling a few pieces off that engine. Cam has a little lope.... but IMHO... because of the 114 lobe sep..... it is amazingly very tame at idle.....I degree'd it in "straight up".

My goal was for it to pull to 6,000 RPM with decent springs and decent heads. I never even gouged on it to see where it would pull.

$275 + shipping + 4% if paying for paypal.....
 
TTT
$240 shipped and I'll eat the 4% for the paypal.... if paying with paypal.
 
Is this for the cam only? What else is needed to properly install the cam in a block?
 
Is this for the cam only? What else is needed to properly install the cam in a block?

Yes.

Only thing you will need is the shimmable roller cam button from Mike @ FullThrottle. It is like $50.

Obviously you will also need lifters and pushrods and springs that are around 130 - 140# on the seat...... but I'm sure that you were asking about the cam button....
 
This cam would be pretty good advanced 2 degress with 1.55 rockers IMO, will pull well over 6000 with the right spring. It is going to need more than the standard beehive setup. It will be good for someone
Mike
 
This cam would be pretty good advanced 2 degress with 1.55 rockers IMO, will pull well over 6000 with the right spring. It is going to need more than the standard beehive setup. It will be good for someone
Mike


Thanks Mike.......I think so too.....

Dropping price....... $220 shipped plus 4% for the paypal fees.....if paying with paypal.
 
Do you have some 1.65 roller rockers for sale?

I have some on the heads I was selling..... but my buddy said he was going to take them both (heads and rockers)...... I'll check to see if that is still the case..... cause I still have the heads on my work bench.
 
Would this setup be compatable with a 1.65's and Beehives on a 4.1L or am I under springed?
 
Would this setup be compatable with a 1.65's and Beehives on a 4.1L or am I under springed?

I had it set up with 26918 beehives around 1.7x or so installed height.... cant remember exactly....I was hoping for 130# on the seat when they broke in......I do remember that I had to pay attention.... cause coil bind isn't too far away..... seems like .070 or maybe a little less maybe? from coilbind..... 1.65 rollers


Anyway... IMHO.... 130# on the seat is enough for 5500 RPM or so without alot of issue.... maybe more...... I was going to see what it liked.... might get close to 6k..... not sure..... these buicks aren't known to be high RPM screamers unless you really go all out on the heads and roatating assembly.

I guess I should also add the spring pressure needs to also go up when you run more boost. This isn't talked about too much around here..... but big boost takes lots of pressure inside the exhaust header..... and tries to hold the exhaust valve open against the spring pressure. There will come a point..... if you have plenty of turbo.... and you cut the boost up.... and the power doesn't seem to go up..... that you are probably starting to hold the exhaust valve open with all the backpressure. It is at this point that you are done until you put some heavier springs on the exhaust....... just my opinion.....
 
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