75mm, or 75.5mm pistons as they will be off shelf items. 76 are usually custom made. The more you inlarge your piston the thinner you cylinder walls will get and you dont want to go 76mm unless you have Iron cylinder sleeves (Darton).
Bisomoto make some great camshafts but be carefull when selecting. Ones that make wild power up to 10krpm (yes on a single cam) Require full valve train upgrades and usually have a very very lumpy idol (something you dont want on a Daily Driver). Dont Bother with the D16y4 head, either change to a SOHC vtec head (D16y1 or D16y8)
Quoted from bisimoto webpage
http://bisimoto.net/store/index.php?...x&cPath=3_9_31
Level 2: street/strip duty, mild idle lope, good for strokers.
Best seller!! Offers a 15% improvement in power over factory, with slightly lopey idle, with emphasis on the 1700 to 5900 rpm range. Takes 7-10 business days to manufacture from pure billet castings. Aftermarket cam gears, and our pro valve springs are highly recommended. Purchase stock cam core, if one is not avaiable. 0.420" valve lift on the intake and exh; 246 deg duration on intake and 225 deg exhaust at 0.040"
Level 2.4: race duty Turbo ONLY, mile idle lope, high RPM duty, Engine Management System (EMS) required.
New race only Turbo camshaft profile with slightly lopey idle, with emphasis up to 8000 rpms. Takes 7-10 business days to manufacture from chillet billet units. Cam gear, and our pro valve springs/retainers are required. 0.440" valve lift on the intake and exh; 246 deg duration on intake and 225 deg exhaust at 0.040" Optimized lobe separation. Professional use only.
75mm, or 75.5mm pistons as they will be off shelf items. 76 are usually custom made. The more you inlarge your piston the thinner you cylinder walls will get and you dont want to go 76mm unless you have Iron cylinder sleeves (Darton).