| Camshaft Dimensions | Cam Base Circle Diameter | Total Lobe Height | Gross Lobe Lift | |
| DH224 (Predator 224) | 0.865" | 1.087" | .222" | |
| DynoCams CM-224 | 0.851" | 1.116" | .265" | |
| EC TTS-906 (Blackbird) | 0.826" | 1.185" | .359" | |
| Lifan HP212E (Shredder's Engine) | 0.864" | 1.086" | .222" | |
| NR Mongoose 272 | 0.818" | 1.094" | .276" | |
| Dyno 356-TSB-Clone | 0.761" | 1.116" | .355" | |
| Dyno 308-224 | 0.805" | 1.115" | .310" | |
| R210 (Predator 212 non-hemi) | 0.987" | 1.204" | .217" | |
| G210FA (Predator 212 hemi) | 0.867" | 1.090" | .223" | |
| Ducar DH275 | 0.866" | 1.105" | .240" | |
| R210-V | 0.866" | 1.089" | .223" | |
| Lifter Dimensions | Total Length | Head Diameter | Head Thickness | Stem Diameter |
| Loncin G210FA (Predator 212 hemi) | 34.70mm | 23.50mm | 1.85mm | 7.73mm |
| Rato R210 (Predator 212 non-hemi) | 34.70mm | 23.50mm | 1.85mm | 7.73mm |
| Ducar DH225 (Predator 224 non-hemi) | 36.60mm | 23.50mm | 1.85mm | 7.80mm |
| Lifan HP212E (Shredder engine) | 34.70mm | 23.50mm | 2.25mm | 7.95mm |
| Pushrod Dimensions | Total Length | Tube Diameter | ||
| Loncin G210FA (Predator 212 hemi) | 5.540" | 0.149" | ||
| Rato R210 (Predator 212 non-hemi) | 5.190" | 0.149" | ||
| Ducar DH225 (Predator 224 non-hemi) | 5.260" | 0.149" | ||
| Lifan HP212E (Shredder engine) | 5.270" | 0.157" |
Example pushrod length's effect on lift at the valve:
Net valve lift with the following combo should be (.265" x 1.2) .318".
Predator 212 hemi bottom end
Dynocams CM-224 camshaft with 0.265" lobe lift
0.045" thick head gasket
Standard Shredder head
1.2:1 ratio Shredder rocker arms
| Pushrod Length | Net Lift at the Valve |
| 5.110" | 0.298" |
| 5.160" | 0.310" |
| 5.190" | 0.315" |
| 5.200" | 0.318" |
| 5.260" | 0.325" |
Net valve lift with the following combo should also be (.265" x 1.2) .318".
Predator 224 non-hemi bottom end (0.040" taller block and 0.080" taller lifter)
Dynocams CM-224 camshaft with 0.265" lobe lift
0.045" head gasket
Standard Shredder head
1.2:1 ratio Shredder rocker arms
| Pushrod Length | Net Lift at the Valve |
| 5.110" | 0.284" |
| 5.160" | 0.316" |
| 5.190" | 0.318" |
| 5.200" | 0.320" |
| 5.260" | 0.328" |
So in both of the above scenarios you would use a 5.200" or 5.190" pushrod because that gives the correct indicated ratio for the rocker arms used. Shorter pushrods don't let you get all of the lift that you are supposed to get from the cam lobe height and rocker ratio, and longer pushrods go past the correct lift and exacerbate geometry issues. None of the lengths of pushrods tested resulted in a more favorable wear pattern on the lash cap or valve tip.
The Predator 212 non-hemi would also use the 5.260" length pushrod when using standard stamped steel rocker arms.
NEVER try to use a hemi pushrod with a non-hemi head, it will be WAY too long. Shorter pushrods don't let you get all of the lift that you are supposed to get from the cam lobe lift and rocker ratio, longer pushrods go past the correct lift and exacerbate geometry issues.
Another example, this time with Gage 1.35:1 rocker arms and 5.380" length pushrods:
For 16cc Shredder heads on 136.8mm deck TC225 or Predator 224 blocks with .308" cam
5.440" length pushrods for 34.8mm long lifters and 2.650" length valves with no lash caps.
5.380" length pushrods for 36.6mm DH225 lifters with 2.650" length valves and no lash caps
Total stanchion height for Gage 1.35:1 rockers with 2.650" length valves should be .490" for correct geometry.
Total stanchion height for Gage 1.35:1 rockers with 2.595" length Shredder valves and .035" thin lash cap should be .500" for correct geometry.