Apparently CHI will be releasing a 2v alloy head. And it will be a "straight replacement" 2v head. It will feature stock placement ports that will flow just about the same as the 3v's for what we are doing. No exaust problems, and standard 2v accessories will catch the eye of some. And also an aloy 4v with real 4v size ports. Has anyone else got more info?
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10.70 @ 125.00 on the black fun top
408 Cube Cleveland.
Apparently CHI will be releasing a 2v alloy head. And it will be a "straight replacement" 2v head. It will feature stock placement ports that will flow just about the same as the 3v's for what we are doing. No exaust problems, and standard 2v accessories will catch the eye of some. And also an aloy 4v with real 4v size ports. Has anyone else got more info?
I knew about the 2v's but the 4V is interesting.
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I'd guess they'd be somewhere around what their current pricing it. $3000 for complete street use heads and $3500 for competition use. You probably would want to sit down for the price on the CNC ported version.
I found the competition head was still limiting on cam spec. If you had a roller cam you had to add more $, if you had larger than a F246 you'd need new springs. Springs were Isky 8005a's on the competition head.
I'd guess they'd be somewhere around what their current pricing it. $3000 for complete street use heads and $3500 for competition use. You probably would want to sit down for the price on the CNC ported version. Brenden
I thought a little bit cheaper than the 3v.
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10.70 @ 125.00 on the black fun top
408 Cube Cleveland.
Yeah Kostecki engine centre here is charging $5500 for a set of CNC ported 3V CHI's complete but not including roller rockers.
So figure about $7000 by the time you add RR's and CHI inlet manifold. Quite bizzarre when you seriously look at what we're talking about here - a couple of lumps of metal with springs and valves!
And I think you'll need your screw in studs and guide plates on top of that ~$160-200 (for the CHI and Kostecki deals).
Kostecki's do throw in a free custom matched manifold with the CNC package, so I guess that saves ~$700 in the total package. I don't see a big que outside their shop though!
Might have to go the $1000 500HP fogger set up instead
Brenx: I was planning on fitting Isky 8005a's to run an SVO A342 cam (.580 and .606 lift), a bit bigger than the F246...........you reckon they're not good enough? The specs looked OK??
I was also looking at a set of similar comp cams double springs, little more spring force.
Was only looking to take my engine to mid 6's and maybe a little more over the line.
Stroke: what springs are you running? Do you think you may have had slight valve float issues or was it just a piston to valve clearance issue when the motor was built? Are you putting betting springs in when you patch up your stroker?
Brenx: I was planning on fitting Isky 8005a's to run an SVO A342 cam (.580 and .606 lift), a bit bigger than the F246...........you reckon they're not good enough? The specs looked OK??
I was also looking at a set of similar comp cams double springs, little more spring force.
Was only looking to take my engine to mid 6's and maybe a little more over the line.
Stroke: what springs are you running? Do you think you may have had slight valve float issues or was it just a piston to valve clearance issue when the motor was built? Are you putting betting springs in when you patch up your stroker?
cheers
I meant for 650+ thou lift. Anyone in competition doesn't run 600thou lift cams. I run 135lb closed and 335lb open pressure myself. I have no rpm issue but will be changing when I select a new camshaft. First I have to play some more.
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