Impala SS 396 Engine Pictures


396_chamber_01.jpg - 34856 Bytes AFR combustion chamber pretty much finished at this point. You can see that this is also a development port by the way that the bowls are shaped.
396_chamber_02.jpg - 38302 Bytes This is the chamber and bowls as delivered from AFR with their expensive CNC option. Looking back, I would have skipped that costly waste of money and just ordered them basic. Steve does a much better job and it would have cost a lot less in the end. Live and learn.
396_port_intake_01.jpg - 34685 Bytes Port on the left is in development. It has been welded already and has the roof raised. The one on the right is as delivered from AFR.
396_conrod_01.jpg - 25909 Bytes Big end of the Oliver 5.850" long connecting rod.
396_conrod_02.jpg - 20880 Bytes The whole rod. These are about the strongest and most reliable steel rods money can buy. Billet.
396_conrod_03.jpg - 24850 Bytes Another big end shot. Shows how beefy they are.
396_conrod_04.jpg - 24518 Bytes Last rod shot shows how they are optimized for strength where they are most likely to break-right at the bottom of the bolt head.
396_crower66310C-01.jpg - 24039 Bytes Looking at the Crower billet hydraulic lifters. Much stronger than OE lifters and should provide better valve control at high rpms.
396_crower66310C-02.jpg - 24213 Bytes Showing the plunger with it's custom annular bleed holes. Different than any I have ever seen, but then I haven't seen that many hydraulic lifters.
396_crower66310C-03.jpg - 26293 Bytes Interesting profile maximized for strength. Also note the size of the roller axles. They should never give any trouble with a street cam.
396_crower66310C-04.jpg - 25672 Bytes Final view kind of shows everything at once. Very nice lifters.
396_crower66310C-05.jpg - 31802 Bytes This is what you refer to if you want to email Brian Crower and spend a lot of money on lifters.
396_lifter_bushing_01.jpg - 46409 Bytes Closeup of the lifter bushings. Small block Chevys are notorious for having poorly indexed lifter bores and it turns out that these were no exception. The process involves boring holes where they should be and then pressing in bronze bushings. Now they are perfectly round, straight and square. Should help horsepower, but we will never konw how much.
396_oil_drainback_rear_01.jpg - 44437 Bytes Another view of the rear of the lifter valley shows the drainback holes plugged. This is to reduce windage on the rotating assembly. Whenever oil drips through and onto the spinning crankshaft, it slows it down and reduces power. This is like a freebie. Some people put vent risers, but I opted to open up the remaining drainbacks quite a bit. You can see it in the corner and it was originally just a rough hole about 1/3 the current size.
396_oil_drainback_front_01.jpg - 40398 Bytes Same with the front drainbacks. Opened up quite a bit and smoothed for good oil flow down to the front of the pan. Also note the pipe plugs in the oil galleys instead of pressed soft plugs. These will go a long way toward staying in at high pressure and not leaking internally.
396_oil_drainback_front_02.jpg - 45169 Bytes Just a lifter galley view of the front drainback passages. Big and smooth.
396_piston_01.jpg - 24691 Bytes Looking at the bottom of the JE piston.
396_piston_02.jpg - 28853 Bytes Nice shot of the wristpin oiling system.
396_piston_03.jpg - 25967 Bytes This view gives a nice perspective on the valve reliefs. You can also see the coatings that have been applied here. Anti friction on the skirt are and thermal barrier on the top surface.
396_piston_04.jpg - 22465 Bytes Another good view of the top of the piston.
396_piston_05.jpg - 27206 Bytes Showing the inside of the piston a little better. Forged pistons give a nice strong wristpin boss.
396_piston_06.jpg - 25702 Bytes A look right down the pin bore shows how it intrudes on the oil control ring. We custom ordered the ring package to get the top ring down as far as possible without having the pin go into the top surface of the oil control ring land.
396_rocker_01.jpg - 32859 Bytes Good top view of a pair of Jesel rockers. The intake rocker is offset to allow the port to be straightened out for more performance. These are the ultimate in strength and reliability. Also note the tappet preload adjustment system...very precise and positive locking.
396_rocker_02.jpg - 29099 Bytes Underside of the Jesel shaft mounted rocker system showing how beefy these are. The trunion bearing goes all the way through (as opposed to stud mounted rockers which have one thin bearing on each side).
396_rocker_03.jpg - 26195 Bytes Last view of the Jesel rockers.
396_sb_crank_01.jpg - 53528 Bytes A look the the rear half of the bottom of the shortblock assembly. The stroker rod bolt reliefs are visible in the pan rails.
396_sb_crank_02.jpg - 54540 Bytes Another look at the rear half of the bottom of the shortblock assembly. The long main studs are for holding a windage tray.
396_sb_front_main.jpg - 41734 Bytes The Oliver 2-bolt front main. You can also see the second main that is a 10 degree splayed design. Also the axially installed mallory metal is visible in the crankshaft counterweight...that makes the crank internally balanced.
396_sb_front_view_01.jpg - 43788 Bytes Front view of the shortblock assembly.
396_sb_piston_top.jpg - 38845 Bytes A look at piston #1 in the shortblock assembly. You can see the valve pocket reliefs cut into the top of the cylinders. Details make all the difference.
396_sb_rear_main_01.jpg - 38984 Bytes Here you can see the porting to the oil passage on that beautiful Oliver rear main.
396_camsheet_01.jpg - 42129 Bytes The cam sheet for the first experimental cam that Comp Cams ground. It has the same exhaust lobes as intake and should show great normally aspirated power.
396_camsheet_02.jpg - 44980 Bytes This is the cam sheet for the second experimental cam that Comp Cams ground for us. It has bigger exhaust lobe and might show big gains with the nitrous. We are hoping that it makes nearly the same power as the other Comp Cams cam without the nitrous, and if so, will be the one I run in the street.

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