[Steve C.]

"I didn't think THAT cam would be one of the XE's, having a 114 LSA...."

All twelve of Butlers custom hydraulic roller cams listed in the link below are made up of Comp XE lobes, he varies the lobe separations:

https://butlerperformance.com/c-1234...-cam-kits.html

In addition Dave Bisschop's custom Old Faithful 2 hydraulic roller cam uses a XE lobe.

.

[67Fbird]

a 3.23 gear and a little converter ...maybe 2200....and your in business!

[78MayanW87]

Originally Posted by Steve C.

"I didn't think THAT cam would be one of the XE's, having a 114 LSA...."

All twelve of Butlers custom hydraulic roller cams listed in the link below are made up of Comp XE lobes, he varies the lobe separations:

https://butlerperformance.com/c-1234...-cam-kits.html

In addition Dave Bisschop's custom Old Faithful 2 hydraulic roller cam uses a XE lobe.

.

Another member had recommended a "041" RAIV cam. Anyone have any thoughts on this and how it stacks up against the cam Butler recommended? Also, can you explain the significance of the "XE" cam? Good, bad, indifferent? Thanks for the help!

[jhein]

I wonder what folks think about this cam for a 400: https://butlerperformance.com/i-2936...tegory:1272239

Butler/Comp Roller Cam (HR) 282/288, 230/236, .510/.521, 114 LS (Std Firing Order/ Std Journals)

"Fits between the 423 (mild) and the 433 (radical) Cams from Comp with wider lobe separation. Similar in size at .050" as a Ram Air IV except more lift. Also makes much power than the Ram Air IV with a broader power curve."

[Steve C.]

78MayanW87, "XE" is short for the Comp Cams Xtreme Energy lobes, which are typically used in conjunction with a 110 lobe separation. However many choose to have custom cams made using these specific lobes but with a different lobe separation, often wider such as Butler has done.

Unfortunately all too often when "XE" is mentioned many jump to conclusions since some have had issues with their use. However as it has been mentioned before the XE cam bashing is almost always involving a hydraulic flat tappet cam and not a hyd roller cam or solid roller cam. In addition the reported issues with the XE hydraulic FLAT tappet cams could be, but not always, be related to either a geometry issue or the need for more rate in the valve spring.


.

[78MayanW87]

Originally Posted by Steve C.

78MayanW87, "XE" is short for the Comp Cams Xtreme Energy lobes, which are typically used in conjunction with a 110 lobe separation. However many choose to have custom cams made using these specific lobes but with a different lobe separation, often wider such as Butler has done.

Unfortunately all too often when "XE" is mentioned many jump to conclusions since some have had issues with their use. However as it has been mentioned before the XE cam bashing is almost always involving a hydraulic flat tappet cam and not a hyd roller cam or solid roller cam. In addition the reported issues with the XE hydraulic FLAT tappet cams could be, but not always, be related to either a geometry issue or the need for more rate in the valve spring.


.

Steve C - Thank you for the explanation!

[blueghoast]

Originally Posted by jhein

I wonder what folks think about this cam for a 400: https://butlerperformance.com/i-2936...tegory:1272239

Butler/Comp Roller Cam (HR) 282/288, 230/236, .510/.521, 114 LS (Std Firing Order/ Std Journals)

"Fits between the 423 (mild) and the 433 (radical) Cams from Comp with wider lobe separation. Similar in size at .050" as a Ram Air IV except more lift. Also makes much power than the Ram Air IV with a broader power curve."

I used this cam in a 400 build with 325 KRE d-ports and it impressed the
hell out of me.I think you would be impressed too.

GT

[PunchT37]

He most probably has 2.41 gears, fellas.

[78MayanW87]

Originally Posted by blueghoast

I used this cam in a 400 build with 325 KRE d-ports and it impressed the
hell out of me.I think you would be impressed too.

GT

here is the description of the cam that Butler recommended. It sounds similar but perhaps a little more mild since when they asked about idle quality I was looking for, the choice was either "mild" or "rough"...I chose "mild"

Similar to the 51-423-11 but with wider lobe separation, smoother idle, a broader power curve, and more vacuum

(HR) (Std Firing Order/ Std Journals) 276/282, 224/230, .503/.510, 114 LS

Slightly more vacuum than a 112 and produces a little smoother idle.

[78MayanW87]

Originally Posted by PunchT37

He most probably has 2.41 gears, fellas.

I plan on changing out the rear gears based upon all the feeback here and am seriously considering a TKX swap as well. I reached out to SST for a quote and it really wasnt too unreasonable.

[jhein]

Originally Posted by 78MayanW87

I plan on changing out the rear gears based upon all the feeback here and am seriously considering a TKX swap as well. I reached out to SST for a quote and it really wasnt too unreasonable.

Call Jody's Transmission. Jody Haag. 610-413-8015

Small "mom & pop" style shop but very professional and great service from a real car guy.

[blueghoast]

Originally Posted by 78MayanW87

I plan on changing out the rear gears based upon all the feeback here and am seriously considering a TKX swap as well. I reached out to SST for a quote and it really wasnt too unreasonable.

The motor I was talking about went in a 67-firebird and we used 3:73 gears.
It was a 350 th trans. Don't remember what converter but the car is WICKED.
I believe he want's to go to a 3:23-3:55 for more long distance driving.
Hope this info helps.

GT

[Vid]

Originally Posted by PunchT37

He most probably has 2.41 gears, fellas.

Nobody would be happy with those gears unless you’re just highway driving through the flat desert, LOL. Quick Performance in Iowa can help you with something that’ll get your bird moving for a reasonable price. They’re building up a 9” for my LeMans right now with 3:60’s. Best of luck with your plotting and planning, sounds like a fun project!


Sent from my iPhone using Tapatalk

[78MayanW87]

After some research, I think that I am leaning towards the Quick Performance: GM 8.5" 10 BOLT / EATON DETROIT TRUETRAC POSI / GEARS / BEARING KIT / PACKAGE with 3.42:1 gears. I would still appreciate any input that you all have. Thoughts? Lee