new guy here , anybody here ever do a r16 engine swap? not finding any info for or against it. have a r16 avail.cheap but would like a 5 speed behind it any suggestions?
thanks for any help...

I haven't heard of anyone swapping an R16 into a 1200. The L16 is more available, revs to 7000 rpm and has plenty of 5-speeds. L-series engines are one of the most popular 1200 swaps.

thanks for the input but i can get an r16 and 4 speed from my best buds wrecked roadster for the cost of labor ,and in stock form it has more hp than the l16 96 to 92 wondering about the oil pan tho may be the wrong shape ,so l16 or l20 are still definitly in the running.

L16 was 96 HP in north america 1967, 1968, 1969, 1970 and 1971. Only the 1972 and 1973 version was 92 HP.

The R16 is a good engine and should swap in relatively easily. It's all custom anyways, custom mounts, crossmember, driveshaft, throttle cable and exhaust connection.

where abouts are you? must be North America somewhere to use "roadster"
The diesel 720 has an SD20 ad sd23 bellhousing that can be used with any of the 71 series 5 speeds found in rwd Nissan cars the diesel ratios are abysmal so wouldnt use that box as a whole, The R16 is also an earlier version of the h20 and U20 very beefy bottom ends and the reason the diesels where based on them.
The R16 is a heavy motor if all cast iron there was an r16 sss with twin carbs and semi sport headers and if you can put later pistons using the H20 crank and rods then you have a 2L engine which could also be enlarged to 2.3L if bored out.

I like the R16 looks and with some work using the SSS alloy head along with H20 bottom end, 48 webers, roller rockers, tuned length headers/exhaust, ignition and better cam grind than a U20 roadster could shield 150-180hp ate.