Master-O-Turbonics Posted July 29, 2011 Report Share Posted July 29, 2011 check it http://www.youtube.com/watch?v=VkNyMokp0Bg&feature=player_detailpage http://www.youtube.com/watch?v=OhbccP1jkOk&feature=player_detailpage Quote Link to comment
Skib Posted July 29, 2011 Report Share Posted July 29, 2011 mmm LY competition head Quote Link to comment
datzenmike Posted July 29, 2011 Report Share Posted July 29, 2011 Straight cut gears??? Quote Link to comment
Farmer Joe Posted July 29, 2011 Report Share Posted July 29, 2011 so is this head similar to the NAPZ head? i like straight cut gears... sounded like there were some gear grindin goin on lol... Quote Link to comment
datzenmike Posted July 29, 2011 Report Share Posted July 29, 2011 so is this head similar to the NAPZ head? i like straight cut gears... sounded like there were some gear grindin goin on lol... If a competition box they work best at high RPM and quick shifting. It s a cross flow head but has dual cams and only one plug per cylinder. Quote Link to comment
d510addict Posted July 29, 2011 Report Share Posted July 29, 2011 Has to be the sickest sounding motor ive ever heard minus the gear grinding. Quote Link to comment
Farmer Joe Posted July 29, 2011 Report Share Posted July 29, 2011 oh twin cam eh? predecessor to the DE architecture maybe... pretty interesting. Quote Link to comment
Skib Posted July 29, 2011 Report Share Posted July 29, 2011 the LY head was a nissan factory head for the L6 that was for racing only. Quote Link to comment
metalmonkey47 Posted July 29, 2011 Report Share Posted July 29, 2011 ZOMG so cool! Straight cut gears...... Because race car!! Quote Link to comment
hellamikey Posted July 29, 2011 Report Share Posted July 29, 2011 LY heads were actually single cam crossflow. Like a Z series motor. Quote Link to comment
gumbyz13 Posted July 29, 2011 Report Share Posted July 29, 2011 The LY was a SOHC with offset rockers and intake and exhaust valves on opposite sides of the combustion chamber. The OS Giken was a DOHC Edit...Damn you just beat me to it... Quote Link to comment
Skib Posted July 29, 2011 Report Share Posted July 29, 2011 god look at those cambers........ :sweat: Quote Link to comment
ggzilla Posted July 29, 2011 Report Share Posted July 29, 2011 They also made an AY head for the A12 nicknamed the "mystery engine'. Don't know how much the raced the LY or AY engines. The LZ had a long racing history, for example in Formula Pacific racing. See http://datsun1200.com/modules/mediawiki/index.php?title=LZ_engine Quote Link to comment
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