I have a 406 with 5.7 rods, hydraulic roller camshaft adv dur 298/306 lift .545/.562 110*,roller rockers, gridles, performance air gap intake, speed pro dish piston with 64cc heads its suppose to be 10.89 to 1. Built th-350 with 2800-3200 stall, 10 bolt with eaton posi 373 gears. i need some opinions on heads. looking on going aluminum what should i pick edelbrock victor jr, dart pro1, or spend more and go with brodix? im looking for the biggest bang for the least amount of money.
need help on heads for 406 again
wayne33
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I have a 406 with 5.7 rods, hydraulic roller camshaft adv dur 298/306 lift .545/.562 110*,roller rockers, gridles, performance air gap intake, speed pro dish piston with 64cc heads its suppose to be 10.89 to 1. Built th-350 with 2800-3200 stall, 10 bolt with eaton posi 373 gears. i need some opinions on heads. looking on going aluminum what should i pick edelbrock victor jr, dart pro1, or spend more and go with brodix? im looking for the biggest bang for the least amount of money.
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Have a look here - http://www.camaros.net/forums/showthread.php?p=1436830&posted=1#post1436830
This is what I have got & am real happy with them. They are very responsive & pull on pretty good up top too. I do think now that I maybe should have gone for the AFR 210's due to wanting or thinking about stepping it up a little, the 195's may be the limiting factor.
This is what I have got & am real happy with them. They are very responsive & pull on pretty good up top too. I do think now that I maybe should have gone for the AFR 210's due to wanting or thinking about stepping it up a little, the 195's may be the limiting factor.
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3,193 Posts
I like the vortec design which out-flows the fast-burn chevy head.
Edelbrock makes a vortec copy (the E-Tec) -170cc port but I think they also make a bigger 200cc vortec. You'll have to run a vortec-style intake.
I would run the 170 cc head with an high-rise edelbrock air gap intake. The torque should be awesome.
Edelbrock makes a vortec copy (the E-Tec) -170cc port but I think they also make a bigger 200cc vortec. You'll have to run a vortec-style intake.
I would run the 170 cc head with an high-rise edelbrock air gap intake. The torque should be awesome.
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3,193 Posts
Geez, never mind. I didn't see that you had a race cam in it!!
AFR 220cc heads are the best out there.:thumbsup:
so just want to be clear before i buy another set of heads. would you guys go with:
a) AFR# 1121 - 227cc , Angle Plug, 65cc,
b) Edelbrock victor jr # 77589 215cc, angle plug, 67cc,
c) Brodix Track 1 # 1001001A 221cc ANGLE PLU,G 67cc,
The car might see the track once a year. It's just a weekend toy
a) AFR# 1121 - 227cc , Angle Plug, 65cc,
b) Edelbrock victor jr # 77589 215cc, angle plug, 67cc,
c) Brodix Track 1 # 1001001A 221cc ANGLE PLU,G 67cc,
The car might see the track once a year. It's just a weekend toy
Blown head gasket stopped me last outing
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2,843 Posts
I'm of the opinion that ANY 400 SB needs at least 210cc heads. I had a mild 406 (280H cam) with older AFR-195's and she was basically done just over 5000 RPM. Traded for 210's and it really woke up the SB above 5000 RPM while losing absolutely nothing down low.
This and other R&D, have confirmed that 'smallish cam/big heads' is a great way to go. Misery is 'big cam/small heads'.
This and other R&D, have confirmed that 'smallish cam/big heads' is a great way to go. Misery is 'big cam/small heads'.
I just dyno'd one of the Dart 400" SHP engine kits with 10.8 compression and their 200cc as cast heads. It made 540HP with Darts dual plane air gap style intake and a 750 Holley. Then we used a Weiand Team G single plane and made 555HP. It was hanging on well past 6600-6700 rpm....cam I used peaked around 6300.
200cc is the least I'd run on one. Of those other choices the AFR 227's would get my nod!
JIM
200cc is the least I'd run on one. Of those other choices the AFR 227's would get my nod!
JIM
For that tight converter I would run a set of AFR 195's no doubt. Im running a set of older AFR 195's and a much smaller cam and it runs killer. My converter is a 3200 as well. It goes 11.8's at 115 and has perfect street manners. I think the big heads and tight converter are a bad match.
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782 Posts
They're not iron, but I have a set of GM's redesigned 225cc runner Bowtie Vortecs for my similar 406. Cam is 232/238, 9.75:1 compression.
I'd probably go with the AFR's if you have the coin.
I'd probably go with the AFR's if you have the coin.
A head around 220-230 with a decent csa (not 2"sq.) at the P-rod pinch.
Also a head that size will have a 2.08 to 2.125" int valve which will work well with the bigger bore. A small head will just go into choke early and start loosing power above peak tq. No reason a decent head (and intake)with your cam shouldnt make 550hp+/- and run high 10s
Also a head that size will have a 2.08 to 2.125" int valve which will work well with the bigger bore. A small head will just go into choke early and start loosing power above peak tq. No reason a decent head (and intake)with your cam shouldnt make 550hp+/- and run high 10s
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39 Posts
Highway Star, the pistons are -12cc dish and with a 64cc chamber it makes 10.89 to 1.
my goal is to have a fun weekend toy. I dont real care if it runs 10.90s or 11.00s as long as i dont get smoked by a honda or a 240. I really only wanted to spend $12-1400. but if spending $200 more will be a big difference than im in.
my goal is to have a fun weekend toy. I dont real care if it runs 10.90s or 11.00s as long as i dont get smoked by a honda or a 240. I really only wanted to spend $12-1400. but if spending $200 more will be a big difference than im in.
For your goal an AFR 195 would be fine. Sure the 227's are awesome, but they cost more to begin with and despite what they say, "standard" valvetrain does not work. Now you are into the cost of offset rockers and so on....
I hear a lot of good things about the ProFiler heads too and they are even cheaper I believe.
I hear a lot of good things about the ProFiler heads too and they are even cheaper I believe.
Thats why I went with steel.... well under $1000......... Happy :yes:
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