Modern engines
A word of caution may be useful .
CMP's like the HUP were designed by engineers who knew that the average road speed with the 216 would be around 40-45 MPH . If you install a later 261 or whatever donk , you will almost double the bhp available (85 vs 145) . Your HUP with its higher revving 261 engine will cruise along at say 55 mph , easily . Remember these vehicles have a short wheelbase and high centre of gravity . Even the slightest wobble at that speed may have distastrous effects . Imagine a tyre blowout .....
The 216 fitted with aluminum pistons and modern slip in big end bearings is another way to go . Parts for the 216 are readily available still .
Mike
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