iroc.86

im building a 383 internal ballance 10.4:1 cr
lunati vodoo 60101 cam 1.6 ssroller rockers

i am looking at heads and was wondering what yall think will be better some
dart ss 2.02 1.60

or the new gen 1 sbc patriots
i willpost more specs in a bit

Badass355ciz28

iTrader: (17)

what are you looking to do what kind of intake are you going to run and what carb?

iroc.86

hsr intake
stock tb for now
30lbhr injectors
commander 950 ecu

150hp n2o

hopping to be ale to get 400hp flywheel eventualy
tb upgrade etc...

Badass355ciz28

iTrader: (17)

a nice set of sportsman 2 heads or some afr heads even tho i think they are overrated for the money you spend on them.

iroc.86

butt out of the two i have in my fist post??

iroc.86

New pair of assembled Dart SS series Iron heads marketed through PBM. Cylinder heads are for carbureted small block 327, 350, 377, 383 or 400 engines. (377 & 400 applications for street would require steam holes to be drilled. We can drill the steam holes for an additional $30.00 for the pair. ) 67cc heart shaped combustion chambers. ( These heads are also available in 76cc versions - see our other lot listings for this chamber size ) Straight plug design. High flow 170cc intake runners. Integral cast valve guides. Bolt holes on end of heads for all accessories.Heads have both the perimeter and centerbolt holes for valve covers. These heads are assembled in our machine shop. Seat concentricy is checked, mild bowl blending is done to remove any casting intrusions. Assembled with premium stainless 2.02 intake valves and 1.60 exhaust valves with necked down stems. New .550 lift Z-28 valve springs, new steel retainers, hardened locks, and umbrella valve seals. Screw in rocker arm studs (3/8") and guideplates are also included.



patiot performance 190cc in cnc bowl blended
2.02 1.60
64cc combustion chamber
550 max lift

Badass355ciz28

iTrader: (17)

what cam are you using?

Orr89RocZ

iTrader: (20)

if you want an iron head, that compression may be on the high side depending on combustion chamber. I would do either vortecs or better yet, Dart Iron eagle platinum series with a 200cc runner.


you wont need a whole lot of head flow to make 400 flywheel hp. If you want more hp, you'll need more flow and more flow is usually Trick Flow, Dart Pro 1, Brodix, AFR, etc.....


EDIT voodoo 60101 has

Advertised Duration IN/EX: 256/262
Duration @ .050 IN/EX: 213/219
Gross Valve Lift IN/EX: .454"/.468"
LSA / ICL: 112/108
Valve Lash IN/EX: Hyd/Hyd


those specs. good for a stocker 350. VERY small for a 383. Bump up atleast 1 step, preferably 2 steps

iroc.86

with my 1.6rr the lift will be 483in 499ex so maybe 1 step up in the cam cause
the two heads i am looking at are 550 max lift

Orr89RocZ

iTrader: (20)

you definately want to be around .500 lift with most heads, and some of the high end aftermarket it be best to stick to around 550 lift or so. Vortecs love .500 and no more.

The lift is ok with that cam its just the duration is really small. The voodoo 60102 isnt bad at 219/227 duration. I really like the 60103 at 227/233 but with 1.6's the highest lift is .537. getting close to max lift but should beable to handle it

iroc.86

do you think the dart ss's would be a good hoice im kinda on a budget and can get them for like 675

iroc.86

well im going with the patriots they should be here in like a week or so
should have good results

Orr89RocZ

iTrader: (20)

remember those new budget patriots are a 1206 gasket size, so the HSR will need to be slightly opened up to match properly. If you got a older HSR, there wont be enough material on the base to open up and you'll need material welded on.

iroc.86

i belive its a newer version but it could be an old casting
there just a few thous diff. huh?

Orr89RocZ

iTrader: (20)

it should have a casting date on the manifold.. if its after mid '06 i believe you should be good, there should be visably alot of material on the manifold around the injector bosses at the top of the runners

iroc.86

it looks pretty thick right there ide say prol. 3/8in

what if i werent to do any of that thoug? consequences?

Orr89RocZ

iTrader: (20)

what? not port the manifold to match? there wouldnt be that big of a consequence, and it may actually not really effect much.

I'd take a look at how well the port matches the manifold ports on the HSR. Make sure there is no overhanging metal protruding into the intake flow path from the walls of the head port. If all looks good then you can just bolt it on and not worry about it.

Just make sure you have enough material on the top of the HSR to cover all the patriot head intake port. havin a 1205 port goin into a 1206 isnt that big of a deal, but i think it leaves alittle bit of flow on the table by not matching them together abit better.

just bolt the hsr on, and take a look down the runners to the head and see how well it all lines up. If it looks good, and you have enough material to seal the head, then dont worry about port matchin anything

iroc.86

thanks a bunch i will def do that