Join Date: Apr 2010
Location: Quartzsite Az,/ Picton, On
Valve springs do get tired. If you do the drz springs, you are covered if you do decide to change cams or ignition box..
The only downside to doing the thin base gasket is pulling the barrel, but with the head off, most of the work is done anyway. That and the fact that you will have to run high test gas with the higher compression.
When I put my hotcams in, I lost some low end grunt. By changing to the thin gasket, I got it back. It was very noticeable. I never tried it with the stock cams, but it should still be a noticeable improvement..
2007 LTZ 400.. 94mm J&E piston, +4mm hotrods crank, 536webb cams,wiseco valves, 39mm fcr, tokyo mods throttle spring, honda thumb throttle,spring removed. yoshimura full exhaust, honda 400ex intake tube, no air box