Hydraulic Rollers

Dave Ribeiro · 01-16-2015, 06:12 PM

JR,

I hope you check with NHRA Tech guy on Morel's being legal ???

HandOverFist · 01-16-2015, 08:11 PM

What could possibly constitute an illegal lifter as long as it has some travel? They do check lift with a solid, right?

Rob Petrie E395 · 02-10-2015, 05:39 PM

Nobody's posted in this thread for a while. But I was wondering if anybody knows what the difference is between the Comp Cams 875-16 reduced travel Hyd roller lifter and the Comp Cams 15850-16 short travel Hyd roller lifter? If you read the descriptions they are the same and fit the same engines. Except that one is 10 grams heavier, .06 difference in seat height and twice the price. There has got to be more to it than that but their site does not say what it is. Too late to call Comp tonight but I was wondering if anybody on here knows.

Jeff Stout · 02-10-2015, 07:12 PM

Interesting as Im working on getting all the pieces for a 307 oldsmobile motor and looking into what roller hydraulic to use. Im sure Im staying with the small diameter .842 unless someone has better ideas of want would work cheaper and easier.

Rich Biebel · 02-10-2015, 07:21 PM

I had Bullet hydraulic roller lifters in my LT-1 stocker. They had about .015" travel as I recall. They may have been made by Morell, I don't know, but had Bullet etched on them. They were about the same cost as std solid rollers out there today. Woodro Josey sold me those along with numerous other parts on that engine build....

They were excellent parts and trouble free to any rpm....

jmracing · 02-10-2015, 07:36 PM

JMRACING
Go with Comp Cams # 15850-16the best one for the price

Rob Petrie E395 · 02-10-2015, 09:50 PM

I sent Chris at Comp a email and did not expect to hear back till tomorrow but he was able to get back to me tonight.
For those interested here is what he said about the 2 different lifters.

For a race engine the 15850-16 is best for a race application because it only has .030" of travel and it can take over 500#'s of open spring pressure.
The 875-16 has about .100" of travel and can take 400#'s open pressure.

01-16-2015, 06:12 PM	#1
Dave Ribeiro VIP Member Join Date: Sep 2002 Location: Williamsburg, Va.---USA Posts: 1,827 Likes: 1,612 Liked 56 Times in 27 Posts	Re: Hydraulic Rollers JR, I hope you check with NHRA Tech guy on Morel's being legal ??? __________________ Dave Ribeiro 1033 STK

01-16-2015, 08:11 PM	#2
HandOverFist VIP Member Join Date: Oct 2013 Location: Gulf Breeze, FL Posts: 1,651 Likes: 8 Liked 33 Times in 16 Posts	Re: Hydraulic Rollers What could possibly constitute an illegal lifter as long as it has some travel? They do check lift with a solid, right? __________________ Rich Taylor I/SA - 321

02-10-2015, 05:39 PM	#3
Rob Petrie E395 VIP Member Join Date: Dec 2007 Location: Woodlawn IL Posts: 1,092 Likes: 162 Liked 216 Times in 77 Posts	Re: Hydraulic Rollers Nobody's posted in this thread for a while. But I was wondering if anybody knows what the difference is between the Comp Cams 875-16 reduced travel Hyd roller lifter and the Comp Cams 15850-16 short travel Hyd roller lifter? If you read the descriptions they are the same and fit the same engines. Except that one is 10 grams heavier, .06 difference in seat height and twice the price. There has got to be more to it than that but their site does not say what it is. Too late to call Comp tonight but I was wondering if anybody on here knows.

02-10-2015, 07:12 PM	#4
Jeff Stout VIP Member Join Date: Dec 2001 Location: phoenix Posts: 1,489 Likes: 66 Liked 706 Times in 283 Posts	Re: Hydraulic Rollers Interesting as Im working on getting all the pieces for a 307 oldsmobile motor and looking into what roller hydraulic to use. Im sure Im staying with the small diameter .842 unless someone has better ideas of want would work cheaper and easier.

02-10-2015, 07:21 PM	#5
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,315 Likes: 25 Liked 544 Times in 213 Posts	Re: Hydraulic Rollers I had Bullet hydraulic roller lifters in my LT-1 stocker. They had about .015" travel as I recall. They may have been made by Morell, I don't know, but had Bullet etched on them. They were about the same cost as std solid rollers out there today. Woodro Josey sold me those along with numerous other parts on that engine build.... They were excellent parts and trouble free to any rpm.... __________________ Rich Biebel S/C 1479 Stock 147R

02-10-2015, 07:36 PM	#6
jmracing Junior Member Join Date: Jan 2005 Location: REPENTIGNY, QC. CANADA J6A8G5 514-642-0603 Posts: 39 Likes: 0 Liked 0 Times in 0 Posts	Re: Hydraulic Rollers JMRACING Go with Comp Cams # 15850-16the best one for the price

02-10-2015, 09:50 PM	#7
Rob Petrie E395 VIP Member Join Date: Dec 2007 Location: Woodlawn IL Posts: 1,092 Likes: 162 Liked 216 Times in 77 Posts	Re: Hydraulic Rollers I sent Chris at Comp a email and did not expect to hear back till tomorrow but he was able to get back to me tonight. For those interested here is what he said about the 2 different lifters. For a race engine the 15850-16 is best for a race application because it only has .030" of travel and it can take over 500#'s of open spring pressure. The 875-16 has about .100" of travel and can take 400#'s open pressure.