Previous Thread
Next Thread
Print Thread
can someone school me on lash caps on a 426 hemi? #218730
02/09/09 01:31 PM
02/09/09 01:31 PM
Joined: Jan 2003
Posts: 8,844
poplar bluff mo.
T
toplescuda Offline OP
I Whine
toplescuda  Offline OP
I Whine
T

Joined: Jan 2003
Posts: 8,844
poplar bluff mo.
never messed with any kind of lash caps whats the deal and how you do it?
ralph


1970 barracuda convert. 1 of 59
1970 pro street A.A.R. clone (panther pink)
1971 charger
2015 hellcat challenger. Redline red
2014 quad cab 4x4 ram 8 speed hemi
Re: can someone school me on lash caps on a 426 hemi? [Re: toplescuda] #218731
02/09/09 01:56 PM
02/09/09 01:56 PM
Joined: Aug 2003
Posts: 43,099
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,099
Bend,OR USA
You need to have the retainers and lash caps designed to work with each other, the Hemi lash caps are real short usually also so I wouldn't try and run them on a loose lash cam. I know racers that did and the lash caps would come off frequently and cause problems


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: can someone school me on lash caps on a 426 hemi? [Re: toplescuda] #218732
02/09/09 02:21 PM
02/09/09 02:21 PM
Joined: Dec 2007
Posts: 154
Joplin, Missouri
M
Mac's Hemi 64 Offline
member
Mac's Hemi 64  Offline
member
M

Joined: Dec 2007
Posts: 154
Joplin, Missouri
What kind of setup race motor, street?

Re: can someone school me on lash caps on a 426 hemi? [Re: Mac's Hemi 64] #218733
02/09/09 04:19 PM
02/09/09 04:19 PM
Joined: Jan 2003
Posts: 8,844
poplar bluff mo.
T
toplescuda Offline OP
I Whine
toplescuda  Offline OP
I Whine
T

Joined: Jan 2003
Posts: 8,844
poplar bluff mo.
595 310 roller 11-1 compression alum head street/strip


1970 barracuda convert. 1 of 59
1970 pro street A.A.R. clone (panther pink)
1971 charger
2015 hellcat challenger. Redline red
2014 quad cab 4x4 ram 8 speed hemi
Re: can someone school me on lash caps on a 426 hemi? [Re: toplescuda] #218734
02/09/09 04:29 PM
02/09/09 04:29 PM
Joined: Jan 2003
Posts: 1,938
Sonora CA
Mopar_Rich Offline
top fuel
Mopar_Rich  Offline
top fuel

Joined: Jan 2003
Posts: 1,938
Sonora CA
Quote:

never messed with any kind of lash caps whats the deal and how you do it?
ralph




You have to use lash caps with a Hemi. It saves the valve tips and you need the extra surface area for the rollers. I use the Comp # 619 caps made for .308 valve stems. You have to use locks that are recessed for the caps. Use Comp # 610 locks (10 degree)

Re: can someone school me on lash caps on a 426 hemi? [Re: Mopar_Rich] #218735
02/09/09 04:31 PM
02/09/09 04:31 PM
Joined: Jan 2003
Posts: 1,938
Sonora CA
Mopar_Rich Offline
top fuel
Mopar_Rich  Offline
top fuel

Joined: Jan 2003
Posts: 1,938
Sonora CA
Here's how the locks work with the lash caps

Re: can someone school me on lash caps on a 426 hemi? [Re: Mopar_Rich] #218736
02/09/09 04:39 PM
02/09/09 04:39 PM
Joined: Jan 2003
Posts: 8,844
poplar bluff mo.
T
toplescuda Offline OP
I Whine
toplescuda  Offline OP
I Whine
T

Joined: Jan 2003
Posts: 8,844
poplar bluff mo.
how much are thay?


1970 barracuda convert. 1 of 59
1970 pro street A.A.R. clone (panther pink)
1971 charger
2015 hellcat challenger. Redline red
2014 quad cab 4x4 ram 8 speed hemi
Re: can someone school me on lash caps on a 426 hemi? [Re: Mopar_Rich] #218737
02/09/09 05:04 PM
02/09/09 05:04 PM
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing Offline
master
B G Racing  Offline
master

Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
Quote:

Quote:

never messed with any kind of lash caps whats the deal and how you do it?
ralph




You have to use lash caps with a Hemi. It saves the valve tips and you need the extra surface area for the rollers. I use the Comp # 619 caps made for .308 valve stems. You have to use locks that are recessed for the caps. Use Comp # 610 locks (10 degree)


It's not and absolute must,but as Mopar Rich says if you want to save your valve tip(5/16)then it is best to run them.We don't normally use them on the Indy Legends(11/32)stem unless we need added clearence or to adjust geometry.Make sure that the retainer,locks and lash caps are compatable there are a few different lengths and depths on the lash caps.

Re: can someone school me on lash caps on a 426 hemi? [Re: B G Racing] #218738
02/09/09 05:14 PM
02/09/09 05:14 PM
Joined: May 2004
Posts: 12,383
Taxes & Virus's R-US, NY
Dragula Offline
I Live Here
Dragula  Offline
I Live Here

Joined: May 2004
Posts: 12,383
Taxes & Virus's R-US, NY
I prefer running them on engines like mine because it makes getting the valves out of the heads a couple seasons later. It beats up the lash caps instead of the valve stems.


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: can someone school me on lash caps on a 426 hemi? [Re: Mopar_Rich] #218739
02/13/09 10:56 PM
02/13/09 10:56 PM
Joined: Jan 2005
Posts: 1,466
malvern, ohio
3
3ddart Offline
pro stock
3ddart  Offline
pro stock
3

Joined: Jan 2005
Posts: 1,466
malvern, ohio
i have the 619 lash caps, but 7 degree locks and retainers on my motor. the locks are not recessed and the cam is a crane hyd. roller 610 and 574 on the intake (1.7 rockers on the corners and 1.6 on the inside valves) and .555 exh. my ? is do i need to change the retainer & locks to 10 degree on this setup? street sometime strip car. thanks, dave

Re: can someone school me on lash caps on a 426 hemi? [Re: 3ddart] #218740
02/13/09 11:23 PM
02/13/09 11:23 PM
Joined: Jan 2003
Posts: 1,938
Sonora CA
Mopar_Rich Offline
top fuel
Mopar_Rich  Offline
top fuel

Joined: Jan 2003
Posts: 1,938
Sonora CA
The degree of the retainer and the lock must agree. So if you have 7 degree locks and 7 degree retainers you might be okay. But if the locks aren't cut or recessed for the edge of the lash cap you will have problems. It all depends on the locks. So mock one up, and see if the lash cap sits down on the valve tip as it should.

Re: can someone school me on lash caps on a 426 hemi? [Re: Mopar_Rich] #218741
02/13/09 11:44 PM
02/13/09 11:44 PM
Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer Offline
master
Bob_Coomer  Offline
master

Joined: Nov 2003
Posts: 6,293
Rock Springs
Quote:

The degree of the retainer and the lock must agree. So if you have 7 degree locks and 7 degree retainers you might be okay. But if the locks aren't cut or recessed for the edge of the lash cap you will have problems. It all depends on the locks. So mock one up, and see if the lash cap sits down on the valve tip as it should.




I did that on the very same stuff.
Comp stuff here
741 retainers
610 valve locks
619 lash caps

Look


[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]






Powered by UBB.threads™ PHP Forum Software 7.7.1