Have had this thought rolling around in my mind for a bit. I think we touched on the subject years ago. Can't find the thread though.
an AFR is stoichiometric, then presumably all the oxygen in the air is reacted with all the fuel in the air and there's none of either left over...
Brand new (these heads have never been run) AFR 335 CNC heads done by Joey Grose in Lodi with flow sheets. (cost 2912.91 bare)
Manley race master valves 2.3" int 1.88" exh (cost 265.00)
Manley 1.625 roller springs 330# seat and 900# open @ .800 (cost 550.00)
Manley titanium retainers and 10...
540 Pump Gas
Manley Rotator with SRP 18cc Dome
AFR305 heads out of the box non CNCchamber
Single Plane Intake
740HP at 5800 RPM
705#/ft 4700 rpm
670#/ft at 3800
640#/ft at 5800
AFR 357 CNC complete valve train. New.
Intake valves 2.30x 11/32
exhaust valves 1.88x11/32
Went to bigger stuff never run. I'll throw the springs pictured in as well. .700 roller
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AFR 357cc Fully CNCPorted "Magnum" BBC Cylinder HeadsBrand new BBC AFR 357cc cnc ported heads. These heads arenew and still have the quality control approved stickers on them. $2500 If youhave any questions please feel free to give me a call.
I have a 565 with afr 335 heads, ross pistons, 10.5 comp. running 93 octane. the chambers are cnc" to 121cc. when we dyno it we had it at 32 degrees until fuel cruve was good then the dyno operator said lets try 30 degrees and it made about 5 more horse and trq so we left it. I have had a guy...
Hey guys trying to fix a o2 reading problem reading full lean. I was going to add those o2 extension to pull sensors out of pipe some. The problem is frist it went full lean when getting on plane then would come back after I got on her for alittle bit. But all ways worked at idle. So bought a...
(SOLD)LS1 Parts (AFR, JE, Callies, Carrilo)
Decided to get rid of my pile of LS1 parts for a project that is just never going to ever get done... no time to finish what projects I already have... let alone new ones... so...
Here is what I have:
AFR CNC Cathedrial port heads, hand blended...
OK...first post for me in the Dyno Room. I have a 575sci that I have already upgraded blower to a stripped 871 littlefield (triangulated discharge) and have added a Whipple lowpro intercooler/manifold. I have the motor torn down for inspection/rering. I have decided to upgrade to a hydraulic...
I have some AFR 315's would they flow enough to support a 13.5:1 540c.i. at 6500RPM? Are all of the AFR heads based on the same casting, could these be opened up to support a larger engine? Thanks in advance.
Here you go. These are $23.00 each from jegs or summit new. Set of 8 from my AFR heads that I swapped for 2.30 valves. They are all in perfect condition, just need to clean the carbon off.
AFR - Airflow Research #033-7620
2.250" 11/32 Stem Std + .250
Im looking to buy a set of AFR 325's BBC heads and was curious if they will work "out of the box" in a jet boat application. I plan to use a 270/280 @ .050" , .700" solid roller and spin to a 7500 rpm max. The have 250 seat and 650 open , .750" max lift springs installed.
Has anyone had any...
I have a 496 now (63 Nova) and thinking of doing this same build. Basically heads and cam change. What increase in HP TQ would there be going to the 315 CNC heads?
I just found some bad bearings in my backup motor:mad:
So I'm thinking of building a 540. I have a set of AFR 305 w/cnc chambers and pockets and a set of stock Edlebrock RPM Marine heads 315/300.
Which heads would be best???
Looking to build around a 10 to 1 motor.:D
looking at some new heads for my 505 m4 in the tx19. getting rid of the procomps(115cc) and goin to a 119 chamber/thick gasket otta drop my compression to near 12 to 1 , maybe a tad more, but cheaper to run no less. i'm looking for a head with good velocity on the runners and somewhere around...
for an inboard outboard hot rod boat with about 2800 lbs, what head would you think would work the best from idle to 7200 rpms. One gear, bravo one,, 511 bbc tall deck with 4.375 stroke , 11-1 comp, roller cam . I was looking at the brodix ads for the advertised flow on the oval ports and they...