General Motors V8 Discussion Discussion relating to getting the most out of your LSx or other GM-based V8 Miata's engine

Dohc ls3

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Old 11-09-2014, 05:25 PM
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Default Dohc ls3

BangShift.com Mercury Marine Dual Overhead Cam Four Valve LS Engine

Oh my... please..yes...please..

Old 11-13-2014, 11:41 PM
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Gee didn't Ford figure that out about 40 years ago?
Old 11-14-2014, 07:27 AM
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Originally Posted by charchri4
Gee didn't Ford figure that out about 40 years ago?
Did they? The idea of 9k+ rpm and 900 NA *reliable* HP got me all tingly.
Old 11-14-2014, 01:47 PM
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Well OK I think the brits or germans figured it out in the 20s or something but I was thinking about the 427 SOHC engines from the late 60s.

No question that is a sweet engine. Gotta wonder why GM didn't think of that! On the other hand a 500 hp boss 302 crate engine is only 10 grand so why reinvent the wheel anyway...
Old 11-14-2014, 04:55 PM
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Originally Posted by charchri4
On the other hand a 500 hp boss 302 crate engine is only 10 grand so why reinvent the wheel anyway...
cuz I like bowties! I'm currently reading up on vortech SC's though. Thinking I could lose the power steering pump and put the SC in it's place. ...My mod A.D.D. stays busy! Luckily it mostly only cost me research time at this point. Meanwhile the car goes to the body and paint guy tomorrow for final fitment of the new nose. Looking forward to the nose job. Hope the result is as I imagined in my head.
Old 11-14-2014, 05:00 PM
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Ford built a 4cam Indycar V8 based loosely on the 289 back in the 60's. There may have been some Cosworth influence. A few years ago, I bought some tools from a shop in St. Pete that had 5 or 6 of the complete motors on a rack, plus cabinets full of spares and a couple of genuine Indycar chassis in process of being restored. Pretty amazing, just a hole in the wall shop with all that stuff going on.

Mike
Old 11-14-2014, 05:10 PM
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Originally Posted by cvx_20
Pretty amazing, just a hole in the wall shop with all that stuff going on.

Mike
Those are the places that make you want to bring over a case of beer on a Friday evening just for being allowed to hang out.
Old 11-14-2014, 07:08 PM
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Originally Posted by Gator Bait
Looking forward to the nose job. Hope the result is as I imagined in my head.
We want pictures as soon as it hits the street!
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