Lt1 afr heads dyno, Recommended for displacements up to 400 cubic inches, operating up to 6500 RPM. 0:1 to 12. 602/. Only at GM High-Tech Performance Magazine! Jul 26, 2012 · I've been running the HotCam on my LT1 for a couple of years now with stock heads and intake. AI has good results (track and dyno), havent seen a whole lot of high numbers from guys with eliminators yet. 4:1. 600'' exhaust with AFR's hardened ductile iron interlocking valve seats. Their flow characteristics, ideal operating range of idle to 6,000 rpm (higher rpm ranges are possible, depending on the combination of parts), 23 degree valve angle, and standard valve spacing make AFR 180cc LT1 Eliminator Street heads perfect for 350 to 383 c. Also i'd go with trickflow b/c the LT4 hot cam is on the small side. 600 so I would have thought AFR is crucial to the #s. i. This is ERE-383 number 133. Aug 3, 2009 · C4 Tech/Performance - Anyone have dyno results for LTX with AFR heads - Going to get new heads for my car. Nov 24, 2006 · AFR is the better of the two, but the Trickflow is the better bang for the buck. 7 and gaining 15 RWHP. These heads have several combustion chamber options with a 64cc exhaust port and a 3/4" thick head deck (ideal for nitrous or blower applications). For the record AFR's delivery time isn't always 3 months - Somethings are faster than others and the time of the year impacts the delivery schedule. Aug 1, 2009 · Read all about the various LT1 Cylinder Heads available to the aftermarket community as we provide an in depth comparison. Pump gas friendly, 10. 586" lift valve-train l AFR's 195cc "Street" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. engines. If it was me using the LT4 hot cam i wouldn't even upgrade the heads because the Trickflows will lower compression on a stock bottom end. Which head are you refering to, how many cubic inches will you have, what type of exhaust (headers back) will you use, what intake set-up will you use, what gears will you use, what torque converter will you use?. Kind of in between using AI or buying AFR's. The intake used is a Victor E port matched to AFR 195 heads. Does this change in AFR to hp sound right? Feb 13, 2007 · AFR specs two ' street ' heads. 4:1 and it gained 1 RWHP to 340. the 180 and the 190. 7 to 12. Feb 25, 2009 · The last pull was 12. d. I don't understand why my setup only gained that amount going from 10. I've heard of stock LT1 AFR changes from 11. The heads flow 288 CFM @ . It didn't do all that much for me until I added the long tube headers, keeping the stock mufflers. May 11, 2015 · Those AFR's have more material there than LT1 castings, and ported LT1's milled down to 54 cc chambers are holding a 250 shot and running 9 sec 1/4 mile times in a 4100 lb ImpalaSS. AFR heads are available bare (without parts), call our tech line for details. Standard valves are lightweight 8mm diameter stem, 2. You might check out Llyod Elliott's heads (ported stock Aug 17, 2006 · AFR has a dealer network for a reason, there are many of us that actually stock the heads for immediate, or at least faster, delivery than AFR's usual leadtime. TREperformance sells new AFR 195cc Eliminator 195 cc aluminum cylinder heads from Air Flow Research for almost any Chevrolet vehicle including the Camaro and Corvette LT1 engines, or any other Chevy LT-1 model, part #1031. May 24, 2015 · C4 Tech/Performance - 383 AFR 195 Dyno #s - Finally was able to pick my 383 up yesterday and also had it ran in a engine dyno. 7 to one compression ratio (street) LT1 with AFR heads. 020'' intake and 1. 230/234/113 duration, .
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