Fun with Scales

In preparation for the engine build, I picked up a US Balance Magnum 1000XR digital scale, so I could weigh all the little parts and have a baseline. The scale has a max capacity of 1,000 grams, with 0.1g precision.



After cleaning up all the parts, I weighed everything in the top end of the motor.

Engine Parts	weight (grams)
Piston	80.1
Piston pin	20.9
rocker arm shaft	12.8
small rocker arm	28
big rocker arm	34.7
rocker arm shaft spring	1
top piston ring	2.6
middle piston ring	2.6
bottom piston ring	3.1
short pushrod	15
long pushrod	15.7
intake valve	15.8
exhaust valve	17.9
inner valve spring	6.3
outer valve spring	15.8
keepers (pair)	0.8
retainer	4.7

I intend to build up a couple different engines for this project. I figure one will be a mild hot rod setup, with some basic lightening of components, increased compressions, bigger carb etc. Then a high test hot rod motor to eeck out that last 0.5 to 1hp.

Chris H.