Questions & Answers

[Quenton Guenther]

Hi Beachflyer,

Mushroom lifters are a must for the NE series of motors. The camshaft lift was increased from .150" to .186" on the NE motors and the increased lift causes the 10 MM lifter to cut into the camshaft lobes. The solution is simple, just increase the lifter base size to .500" and the lifter "rolls" over the lobe instead of "dancing" down the ramp. Early NE motors employed softened lifters in an effort to match the metal hardness and managed to save the camshaft, but the lifters wore quickly. The later NE motors had mushroom lifters, however they were way too heavy and often the base wasn't level [lifter clearance varied as the lifter rotated]. The factory mushroom lifters can be modified to work well. I have had several hundreds of mushroom lifters made for the earlier motors, and still have a few sets left from the last run of chromeoly mushroom lifters somewhere in the stock room. Most likely all motors with the aluminum intake manifold also had the factory mushroom lifters.

have fun,

[BeachFlyer]

Quenton, Thank you, I'll take a look to see which are installed and contact you if I need the chromemoly lifters. According to the magnet test the intake is aluminum. Also I appreciate your thread on the auto clutch it was very helpful and I am almost there. Next fine tuning idle speed. So far pretty fast with the modifications made.

Thanks again,

[BlueWhizzer]

Quenton, a couple of questions about a vintage "H" engine i am rebuilding. The head has some fins broken off, do the new wc1 heads fit?

Also, my friend that is helping me rebuild this engine suggested we make a custom aluminum gasket for the head and not use the copper one? i think you wrote somewhere that the copper gasket helps keep the engine cooler?

Thanks Scott

[Quenton Guenther]

Hi Scott,

The WC-1 head has a differet bolt pattern and won't fit. I wouldn't want to use a WC-1 head on a vintage motor anyway as it isn't anywhere near the quality of the vintage unit [aluminum is much better on the vintage head].

Whizzer made a aluminum gasket for the vntage motors, however it didin't take long to move to copper for many reasons. The copper can be used over and over, whereas the solid aluminum gasket has issues sealing if reused. The copper gasket will also lower the cylinder and head temp.

There are Re-pops of the vintage head and are so good, few experts can tell the difference.

Check with Memory lane Classics or CRYSTL Enginering [both located in Ohio] for replacement head.

Have fun

[BlueWhizzer]

Quenton, i will probably just go with the stock head for now and replace the head when i have more funds available.

Thanks again,

Scott