- INDY 440 1 HEADS FLOW FULL
- INDY 440 1 HEADS FLOW MODS
- INDY 440 1 HEADS FLOW SERIES
- INDY 440 1 HEADS FLOW FREE
Measuring in at 295 cc, the Indy 440 EZ-295 CNC, affectionately called the Little Easy, scales intake port flow up to a lofty 355 cfm, while still utilizing standard factory-spec rockers.
INDY 440 1 HEADS FLOW FULL
Things really get interesting with the EZ casting treated to Indy's full Windjammer CNC porting of the intake, exhaust, and chamber. The clincher was a look at the flow numbers.
INDY 440 1 HEADS FLOW FREE
The Indy heads free up the area under the spring seat, which is critically short in production-style short-valve heads. With the raised intake runners working down the port to Indy's trademark long valves, the layout has distinct performance advantages, including a taller, deeper, port in the bowl and short turn, and a more appropriately sized port volume for a big-block engine. The architecture of the Indy head was designed from the onset with large high-flowing ports in mind.
INDY 440 1 HEADS FLOW MODS
Weighing which approach would better serve those looking to duplicate our effort, the cold reality is our insanely modified castings represented more work and one-off esoteric mods than even we'd ever want to attempt again, much less pay for. We had scores of hours of porting time in our low-port MP heads, and achieved respectable flow, but the new Indy heads offered something our highly modified castings couldn't match-power and performance right out of the box. The stock exhaust location eliminates potential complications in fitting existing header designs in most applications, but what really got our attention was the EZ performance potential.
INDY 440 1 HEADS FLOW SERIES
I was just curious if anyone had any experience with them.Enter The Indy EZThe 440-EZ series is based upon the popular Indy SR series of heads, but with casting revisions to the intake, and a relocated exhaust port, putting the exhaust back to the stock location from the raised SR position. 450 lift solid lifter cam it has a very mild combo, he was able to use the ball & ball style push rods, instead of the cup & ball style, I thought that was a kind of cool option, he never listens to me anyway, I told him to go with the Harland Sharp's but he's a cheapskate, the PRW's were 1/2 the price. I know a couple of guys that use them purchased some PRW's for an on the cheap 318/390 stroker build with a. About 500 pulls for the Cam & Lifters would show wear(under $200), check & re-shim the Springs as Req'd and away it'd go again, never a Rocker problem, even using the "break on dotted Line" INDY Rockers. \I think the Best we ever saw outa that deal on GASOLINE, was just shy of 800 ?, maybe "just" over ? I forget, I'd have to go looking again ?īut it was reliable, consistent, and VERY maintenance free with the Flat Tappet(non Mushroom). Rollers are FAR more capable, albeit harder on parts. It Campaigned in a Dodge Daytona for many years here in Div 6., surprising how far things have moved ahead even today 5 odd years later, NOT that anybody is still playing with Flat Tappets against Port Flow "area under the curve" ? Yes, that is an old combo from waaay back in 2006, I just reprinted the old 2006 Data from the current SF902 Dyno Drive, that we uploaded from the SF901 before it was sold off. Those are some great numbers, for an older solid cam combo, what's the 540ci beast experiment installed in. Next day after fixing the problems, it topped at 894.3HP and 765.5 Ft/lbs. It was getting a little "worrisome" carrying too much Oil up top ! We had to enlarge the drainback, to get more Oil back to the pan high rpm after this one. This one's still running well.been freshened now for the 3rd time just now(new Cam). INDY 440-1 Heads, 2.19 Intake Valve( I spent alot of Time on R & D and Porting) When I was trying for as much as possible from the 2.19" Valve and using a Solid Flat Tappet Camshaft.Īmazing how far things have moved along, even over the last 6 years since this one ? Obviously, more HP is available with larger Valves, and a Roller Cam, as I have since waaaay surpassed this mark by a longshot more recently, just this is Old from the Archives, back in 2006, More along the lines of what "can de" done, using the INDY 440-1 Head and maintaining just the stock 2.19" Intake Valve size, and a NON-Roller, Flat Tappet Camshaft. if anybody does decide to go Racing, or using good Fuels. This always seemed more of a Street/Resto type place ? Pump Gas thing ? Never thought much about posting any Race Engine, or Race Fuel combo's on here ?
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