Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

crane 1.8 rockers advice

Thread Tools
 
Search this Thread
 
Old 09-17-2010, 01:35 AM
  #1  
Teching In
Thread Starter
iTrader: (2)
 
Ss98sS's Avatar
 
Join Date: Jul 2008
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts

Default crane 1.8 rockers advice

i am putting a ms3 cam and gona try and find a decent set of 243s or go with a prc head idk yet but i came across this guy with crane gold 1.8 rockers. i was planing on keeping those stock. would these give me some good hp or would it be a waste? would these effect any thing else if i did buy this like my push rod length.....? Thanks
Old 09-17-2010, 04:41 AM
  #2  
TECH Senior Member
iTrader: (4)
 
vettenuts's Avatar
 
Join Date: Jul 2004
Location: Little Rhody
Posts: 8,092
Likes: 0
Received 11 Likes on 11 Posts

Default

Crane rockers require a full kit of rockers, polylocks, guide plates, studs and pushrods. On a stock motor, they require 7.250" rockers. I would not use the 1.8 Crane rockers with the MS3 cam. For starters, the Crane rockers come off the seat very quickly and will reduce PTV over stock rockers. Crane rockers, either 1.7 or 1.8, would reduce the PTV value. You would also need much stiffer valve springs and larger OD pushrods to keep things under control for a minimal gain.

Bottom line, don't buy the rockers with your setup.
Old 09-17-2010, 08:53 PM
  #3  
Teching In
Thread Starter
iTrader: (2)
 
Ss98sS's Avatar
 
Join Date: Jul 2008
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts

Default

well i was planing on putting some good springs on and good pushrods in. so you think bottom line its not worth putting on with my set up. my goal was to build the whole top end so.
Old 09-18-2010, 01:33 AM
  #4  
8 Second Club
iTrader: (1)
 
GT_EATR's Avatar
 
Join Date: Sep 2009
Location: Laurel, MS
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
Default

I currently have the MS3 cam package for TSP...I got the PRC double valve springs and hardened pushrods but theyre standard 7.400 Length...I know the MS3 is a big lift cam already..would a new set of rocker arms really help...i know it would increase lift but what would the proper selection be??? i have no prob buying the complete kit...i jus want it done right...So im in the same boat as Ss98sS
Old 09-18-2010, 09:12 AM
  #5  
TECH Senior Member
iTrader: (4)
 
vettenuts's Avatar
 
Join Date: Jul 2004
Location: Little Rhody
Posts: 8,092
Likes: 0
Received 11 Likes on 11 Posts

Default

You're throwing away money. The Cranes are very fast off the seat so you are also asking for valve train issues. More is not always better.
Old 09-20-2010, 01:21 PM
  #6  
Teching In
Thread Starter
iTrader: (2)
 
Ss98sS's Avatar
 
Join Date: Jul 2008
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts

Default

alrighty sounds good to me should what do you recommend to buy cuz i would only like to build the top end once. thanks for all your help..
Old 09-20-2010, 01:46 PM
  #7  
TECH Resident
iTrader: (13)
 
Nastyc4's Avatar
 
Join Date: Sep 2006
Location: Canada
Posts: 861
Likes: 0
Received 1 Like on 1 Post

Default

Not trying to jump in and sell you anything but I have a full kit of crane 1.85s with locks retainers and proper pushrods i 'may' be selling. My local shoppe is telling me to just do a cam swap so i'm kind of torn right now which way I should go..
Old 09-21-2010, 11:25 AM
  #8  
Teching In
Thread Starter
iTrader: (2)
 
Ss98sS's Avatar
 
Join Date: Jul 2008
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts

Default

lol no thanks i was gona pick up some because i think i could have gotten the whole kit for 100 bucks but if i dont need them i dont need them...

any sugst. on what i should put on there for a good set.

Thanks a lot




All times are GMT -5. The time now is 02:45 PM.