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Showing results for tags '4age head conversion'.
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OK, I have always had an obsession with the trd 3kr engine from back in the day, realised I was never going to get a real one so I decided to build my own. I don’t recommend this conversion to anyone I did it just to be see if it could be done. It took a lot of time and if I was not a fitter/turner a lot of money. Hope you find it as cool as I do. - Phil Matthews-Frederick. To save a lot of questions here are the specs. Head 4AGE small port head, head stud holes elongated to suit 4k block Head face machined 2mm Front face milled to clear 4k waterpump 11.5:1 static compression Valve train Stock valves trd springs cam tech 294 8mm lift belt drive system using 4ag pulleys adjustable cam pulleys 38mm camshaft extensions Oil fed support block with needle roller bearings for camshaft extensions Crank pulley mounted on the front of the standard v-belt pulley Block Sonic tested Bores repositioned and overbored by 6mm Decked by 3.8mm Lifter bores, head oil drains and feeds blocked Mechanical fuel pump removed Crank Side counterweights removed Knife edged Balanced Shot peened 2kg lighter than stock Flywheel lightened by 4kg Pistons Late 4age smallport cast pistons Balanced Conrods 4age smallport rods Balanced Shot peened Oil system 4k internal oil pump shimmed to 60psi oil pressure Hose feeds to head, cam extension bearings and oil pressure sensor All original head oil drains blocked External head oil drains 4k camshaft remains to drive oil pump Sump Increased capacity by 1L Built in air/oil separator for crankcase breather Fitting welded on for oil drains Cooling system 3 core alloy radiator Remote thermostat Heater ports blocked Ignition system 4k electronic distributor modified to suit 4age head Ca18 sparkplug leads Inlet Quad Mikuni 40mm CV carbs 70mm trumpets Exhaust Hi rise tuned length headers 2” straight under-diff exhaust, huabusa muffler in-car muffler by-pass valve Externals 3k-r look cam cover Electric fuel pump landcruiser V8 starter motor here is a short clip of the old girl at lakeside. http://www.youtube.com/watch?v=0V18NT9mJpQ&feature=youtu.be