Rev
Give Lou Mondello a call on 9555 9591 or 0412 282441 Lou has been rebuilding Datsun U20 roadster engines for the last 15 years but has a shed full on knowledge on L series. His shop is in Moorabbin and his rates are very inexpensive and his work is first class.
He rebuilt my Roadster engine 8 years ago and I have flogged it around the track for many years since and it has been bullet proof (revs to 8k without going bang!).
He rebuilt my L26 late last year and it also has prooved to be excellent.
The budget you will need will be around $4k which will include block honing/boring replacement of all timing gear, oil pump, cylinder head tidy up and new reprofiled valves, all new bearings, lighten flywheel, balancing etc, etc. (basically he replaces everthing that moves with new) Lou does not compromise on anything and being a man of science he is meticulous with his measurements and calculations.
Lou is also the guru when it comes to Su carbs and rebuilds them back to as new
cheers
Alan