Skip to content
View in the app

A better way to browse. Learn more.

rollaclub.com

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

5k Block With 3k Head

Featured Replies

hey mad rolla where did you get your copper head gasket from?

 

Ok found it

 

Ridgecrest Engineering

18 collins Road, Dromana Vic 3936

Phone 03 59 814334 Fax 0359 814337

  • Replies 35
  • Views 56.4k
  • Created
  • Last Reply

Top Posters In This Topic

Posted Images

Hi,

I am in process of putting a new cam in my 5K now as we speak just called it quits for the night.

 

I will post the cam sheet I got with my cam that I had make all its power between 2000RPM and 5000RPM as it is my daily street driver.

 

I have a few cam grinds on my bench here that will make a 3K or any K motor go hard and yes upwards of 10,000RPM cams so ill post them here soon.

 

Cameron

Hey felix was that RW HP or at the flywheel. Either way very impressive for. Was it a 4 0r 5k

 

Josh

 

 

It says it down the bottom, 5K

Ok i`ve only skim read this thread so shoot me if I'm wrong but the compression heights on 4age pistons is way to low to consider using and as to why anyone would use such a damn heavy piston is beyond me same goes for the rods why fit a heavy rod if the standard ones do the job?i really don't understand the point of adding to the reciprocating mass then reving it and then proceed to blow the maincaps out of the bottom of the engine.

Standard rods over here in race spec 4k engines ie 4mm overbored forged pistons will run endurance races(multiple one hour races) without giving trouble,if it aint broke don't fix it! :P

  • 1 month later...

hm I'm slightly confuse as to which head to use on my motor now, its got a stage 5 cam, 4age pistons, not sure which types, shaved block, quad throttle bodies, bottom end all balanced, it used to be ke25 racers 5k, and he used a 3k head on it, to get a comp ratio of 14.5:1, when i got it it came with a 5k head, i want to build it to the same specs but now i have been offered a bigport head as well as a 3k head and unsure which to use, both will be shaved and ported aswell

 

ok i just took a look at the head difference topic and found out that it is not actually a 5k head i have but a mildport k head :)

Edited by anastasios

Please sign in to comment

You will be able to leave a comment after signing in

Sign In Now

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.