700-900whp

H51K

• A common concern when picking out a spring kit is adding too much spring pressure, especially in street applications.  When it comes to the spring, more pressure is better than less pressure.  Less pressure will result in valve float which can cause damage to your valve-train.

• The correct amount of pressure will keep the springs controlled which in turn controls the valves.  The number one cause of valve-train and or cam/bucket failure is not having the correct valve spring for your application.  If the valve spring is not happy, nothing will be happy.

• NOTE: If you are getting your RB26 built at HeadGames we ONLY install HeadGames conical spring kit for our shimless bucket conversion. 

700-900whp

• Are you planning to sit in a lawn chair and listen to your car?  If so, purchase the biggest cam on the market and you’ll be a happy camper!  The big chop will add happiness to your ears, but it will feel laggy because the camshaft is too big!

• If you enjoy beating the crap out of your car and jumping into boost, a smaller cam is the cam for you!  

• With a power range of 700whp-900whp we suggest not moving up to any aftermarket camshaft bigger than 274 advertised duration.  This will give you lots of area under the curve that will keep your dyno happy with miles of smiles.

700-900whp

Option 1: 2J Shimless buckets

Option 2: Kelford shimless buckets

• The RB26 has several options for buckets, however if you are running a shim-under bucket and your spring goes into valve float the shim can spit out and cause catastrophic failure.  We have seen too many failures with the shim under bucket set up so we did some R&D and came up with a few options.
• We can install either the Toyota 2J OEM bucket or the Kelford shimless bucket, this will depend on your camshaft choice. 
• We have been using our shimless bucket conversion for years now with zero failures!  

Pocket Port

If you’re making less than 550whp you can get away with no port work, our rebuild with guides service will give you the reliability you are looking for. 

If you’re making 550whp up to 700whp we often get asked if a full port is necessary, the answer is no!  A full port has too much port volume and will hurt the area under the curve under 700whp.

Lucky for you we offer a budget-friendly upgrade, known as the pocket port!  It will give you the ability to make more area under the curve and at a lower boost level so you don’t have to push your combo to unsafe boost levels.  $