The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-30-2011, 02:38 PM   #1
62ShortStep
Registered User
 
62ShortStep's Avatar
 
Join Date: Sep 2010
Location: Fountain Valley, CA
Posts: 179
235 Lifters: Change Solid to Hydraulic?

My '62 235 uses solid lifters; with a gap of .018 at the exhaust, the thing sure does clatter. My sons' '55 Bel Air 235 runs almost silent with hydraulic lifters.

I read that the cars use hydraulic lifters instead of solid. Apparently the engines are identical...even the engines put in trucks have the correctly drilled passages for the hydraulic lifters.

My truck is not used for heavy duty work, so extra valve lash isn't really needed (I think).

Can I swap my solid lifters for hydraulic? Can I use the same cam?

thanks!
62ShortStep is offline   Reply With Quote
Old 03-31-2011, 06:02 AM   #2
60ratrod
yes, i do
 
60ratrod's Avatar
 
Join Date: Jun 2007
Location: Spokane, wa
Posts: 2,734
Re: 235 Lifters: Change Solid to Hydraulic?

i would think that you have to swap to a hyd cam with the hyd lifters but i could be wrong here.
__________________
ERROR 404....... SNAPPY COMEBACK NOT FOUND
_______________________________________________________________________________________________

-60 Chevy C10, dead 350/good th350 combo, sitting on a 76 c10 blazer frame, built from 11 different vehicles "the abomination"
-07 gmt900 silverado 1500 lt xcab z71, granite blue
-81 suzuki gs650g "shelah"- current project
-81 kz1000m1 csr "sarge" -next project (just beautification)
-07 kawasaki vulcan classic vn900
60ratrod is offline   Reply With Quote
Old 03-31-2011, 09:12 AM   #3
68gmsee
Active Member
 
68gmsee's Avatar
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
Re: 235 Lifters: Change Solid to Hydraulic?

As I know it, there is a difference between solid and hydraulic cams. If it's a high mileage truck it's probably due anyway.
68gmsee is offline   Reply With Quote
Old 03-31-2011, 09:47 AM   #4
stich626
Account Suspended
 
Join Date: Sep 2010
Location: hingham ma
Posts: 1,721
Re: 235 Lifters: Change Solid to Hydraulic?

this depends on you..
you can drop hyd lifters on the cam in there as long as you understand doing so can take out the cam lobes and if that happens you are rebuilding the engine..
if you're ok with that, by all means try it.. it's a hit of miss.. thing..
what I would do is this. take your valve cover and engine side covers off..
find a place local to you that sprays in bed liner.. stop by and ask if while spraying a truck if they'd spray the out side of the side covers and the outside of the valve cover..
you'll have to get them very clean and sand them up some..
a 6 pack of beer or a ten spot should cover the cost..(as it'll cost almost nothing for the guy to spray your small parts as he's doing a truck bed)
take them home, paint them if you don't like black/charcoal and re install..
it'll cost you the 6 pack and a few gaskets.. and be much quieter..
if the liner fix doesn't make it quiet enough for you.. you got a nice crinkle look on the covers.. and a little time spent..
good luck

Last edited by stich626; 03-31-2011 at 09:48 AM.
stich626 is offline   Reply With Quote
Old 03-31-2011, 11:37 AM   #5
62ShortStep
Registered User
 
62ShortStep's Avatar
 
Join Date: Sep 2010
Location: Fountain Valley, CA
Posts: 179
Re: 235 Lifters: Change Solid to Hydraulic?

Thanks for input guys. I'll try to find more info about the cams.

The engine is very low miles and was rebuilt by the PO. Judging by his inability to finish the truck, I bet the engine is barely broken in.
62ShortStep is offline   Reply With Quote
Old 03-31-2011, 12:00 PM   #6
68gmsee
Active Member
 
68gmsee's Avatar
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
Re: 235 Lifters: Change Solid to Hydraulic?

Quote:
Originally Posted by 62ShortStep View Post
.....The engine is very low miles and was rebuilt by the PO. Judging by his inability to finish the truck, I bet the engine is barely broken in.
In this case, spend a couple hundred or so and get a cam and lifter kit.

http://www.northernautoparts.com/

http://www.northernautoparts.com/ECa...ecat_engine=63
68gmsee is offline   Reply With Quote
Old 03-31-2011, 12:08 PM   #7
62ShortStep
Registered User
 
62ShortStep's Avatar
 
Join Date: Sep 2010
Location: Fountain Valley, CA
Posts: 179
Re: 235 Lifters: Change Solid to Hydraulic?

Quote:
Originally Posted by 68gmsee View Post
In this case, spend a couple hundred or so and get a cam and lifter kit.
I'm sure that an engineered solution to the question can be found.
62ShortStep is offline   Reply With Quote
Old 03-31-2011, 12:16 PM   #8
Wrenchbender Ret
Registered User
 
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,190
Re: 235 Lifters: Change Solid to Hydraulic?

I dont have the specs here right now but ive always set them at .013 on the ex. & .008 on the intake. If done right & they are all even, the small ticking sounds good to me.
Wrenchbender Ret is offline   Reply With Quote
Old 03-31-2011, 12:37 PM   #9
62ShortStep
Registered User
 
62ShortStep's Avatar
 
Join Date: Sep 2010
Location: Fountain Valley, CA
Posts: 179
Re: 235 Lifters: Change Solid to Hydraulic?

Quote:
Originally Posted by Wrenchbender Ret View Post
I dont have the specs here right now but ive always set them at .013 on the ex. & .008 on the intake. If done right & they are all even, the small ticking sounds good to me.
.013 would help a lot with the noise. My 60/62 manual says to set the exh at .018. I know the pushrods are pretty long, but .018 sounds excessive.

Have you been using .013 for a long time? Does it still work well in high-heat summer months?

Thanks
62ShortStep is offline   Reply With Quote
Old 03-31-2011, 12:44 PM   #10
cdowns
Senior Member
 
cdowns's Avatar
 
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
Re: 235 Lifters: Change Solid to Hydraulic?

my 57manual says .006 and .013

remember that they should b set at operating temp
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane

MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF

DONT BELIEVE EVERYTHING YOU THINK

TAKE MY ADVISE;I DON'T USE IT ANYWAY
cdowns is offline   Reply With Quote
Old 03-31-2011, 01:00 PM   #11
62ShortStep
Registered User
 
62ShortStep's Avatar
 
Join Date: Sep 2010
Location: Fountain Valley, CA
Posts: 179
Re: 235 Lifters: Change Solid to Hydraulic?

Quote:
Originally Posted by cdowns View Post
my 57manual says .006 and .013
Wow, that's big difference from '57 to '60! Sounds like I should try .006/.013 before I do something more serious.
62ShortStep is offline   Reply With Quote
Old 03-31-2011, 11:53 PM   #12
dwcsr
Hollister Road Co.
 
dwcsr's Avatar
 
Join Date: Apr 2005
Location: Houston
Posts: 6,134
Re: 235 Lifters: Change Solid to Hydraulic?

If you can't get it quite pull the rockers off and look at the face of the rocker that contacts the valve. It can get very worn and and no amount of adjusting will fix the noise. You would need either new rockers or have the old ones refaced. The other noise issue is the shaft gets worn and the rocker get wobbly and again no amount of adjusting will fix the noise. You can get a rebuilt rocker assembly for about $200. Properly adjusted with good parts you should really not hear much noise at all on a solid lifter 235.
dwcsr is offline   Reply With Quote
Old 04-01-2011, 12:08 AM   #13
62ShortStep
Registered User
 
62ShortStep's Avatar
 
Join Date: Sep 2010
Location: Fountain Valley, CA
Posts: 179
Re: 235 Lifters: Change Solid to Hydraulic?

Quote:
Originally Posted by dwcsr View Post
pull the rockers off and look at the face ...the shaft gets worn and the rocker get wobbly
Good advice Dave, I'll check them this weekend.
62ShortStep is offline   Reply With Quote
Old 04-02-2011, 09:22 PM   #14
DLOE65
Registered User
 
DLOE65's Avatar
 
Join Date: Nov 2009
Location: Orange, CA
Posts: 525
Re: 235 Lifters: Change Solid to Hydraulic?

solid lifters will need to be adjusted every few months, I'd go with hydraulic lifters. I think you will have to change the cam too though. call clifford performance or langdon Stovebolt. Those guys know there stuff and are very friendly.
DLOE65 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:33 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com