This first became a partial solid model 7 years ago. 1.5 years later that solid model was completed by Shad Laws, LN Engineering Co-founder.
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Life happened and Shad moved on, leaving with Charles Navarro with a ton of files that were partially completed. After a couple of failed attempts with another billet head design that I began in 2002 (poor exhaust port location) I convinced Charles to allow me a try at getting the "Porkies" head design to a functional state and out of the solid model stages.
Fast forward over two years from that time and you have this MassIVe creation that has been an effort between myself, Tom Digby (The Engineering apprentice currently working with us) and LN Engineering. Charles had already done his part with the development, having assumed all other responsibilities of managing LN Engineering while his (then) partner Shad Laws did NOTHING except the research, design and etc related to these heads and their characteristics, so we have taken things to the next level, but it has been a bumpy road!
These pictures are of Porkies prototype MK-I, it was subject to a machining malfunction and deemed a paper weight about 20 hours into the machining process, but we had the head mostly finished for mock up purposes and to assist with the final rocker arm design before maching the MK-II heads that are 95% finished today, just awaiting pushrod tube bores to be machined and rocker pads to be carved. Of course this particular head has not had the fins cut into it yet- no need as this head will never "run" on an engine. The MK-II heads are fully finned, even fins are cut into the exhaust port OD, and in other areas.
The design needs no intake manifold, the intake flange is designed to accept an IDF Weber patter throttle body DIRECTLY, hence it's shape.
Valve sizes START at 54X46 mm and can go as high as 58.5mm intake and 51mm exhaust on extremely large bore sizes. The MK-II heads, as well as this MK-I prototype are bored for a 106.3mm cylinder, but we'll be testing them with a 105.07mm cylinder from my 3 Liter R/D engine initially and keeping the most conservative valve sizes available. Using this test engine allows direct comparison of this truly MassIVe head against other previous offerings like the German made "Engine Plus" heads, stock big valve TIV heads and the Pauter Super Pro heads, all of which I posess a pair of solely for comparative analysis. The difference is the combustion chamber technology of these heads absolutely supersedes ANYTHING EVER AVAILABLE for pushrod driven aircooled engines. This technology is the only thing we can't picture publicly and thats because of the patent pending processes that Charles is currently exploring.
These heads will have a custom made piston that optimizes the valve angles and combustion chamber characteristics to further optimize the chamber technology. These pistons are completely designed and ready to be machined. We'll also be applying another Nickies cylinder especially made to best suit these heads, designed for Turbo applications to handle insane boost, because these heads are VERY, VERY rigid!
Anyway, here are some pics to make you scratch your head and wonder "Why the hell did they do that.
Yes, they will fit in a 914 engine bay with a custom Tangerine header, since Chris also assisted Shad with the initial research, sizing and exhaust flange characteristics.
Features:
-Porcupine chamber technology (on steroids) with anti detonation features built in allowing up to 11.5:1 CR on PUMP GAS!
-Bores from 100mm up to 111.5mm possible (these are not for something as miniscule as a 2270!)
-OFF THE SHELF Corvette Z06 lightweight valves, springs, seats and retainers are standard (cost effective, latest technology available and readily available anywhere!)
-Standard rocker ratio is 1.6:1, up to 2:1 ratios available on the MK-III race heads
-Rocker arms are billet chromoly steel and "self oilers" for street applications
- Anti-reversion exhaust port design- no stub pipe needed!
- Direct throttle body fitting to the cylinder head for up to 60mm throtle bodies!
The conception of MassIVe performance from a block of billet into the biggest development the Type 4 engine has seen to date.
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