Advice needed on the heads
Thread Starter
Drifting
Joined: Jul 2012
Posts: 1,255
Likes: 297
From: Slovenia, EU
2017 C3 of Year Finalist
Advice needed on the heads
Are the heads with these specs any good?
I intend to use them on my 71 with 350/270 with th400.
I already have long tube headers and performer intake mounted.
Material: 355T6 alum alloy
Comb Chambers: 64cc
Intake Valve Dia: 2.02”
Intake Port volume: 200cc
Intake Port Dim: 1.190”w x 2.075”h
Int Port Location: Stock
Intake Gasket: Fel-Pro# 1205 Mr. Gasket 106
Exh Valve Dia.: 1.600”
Exh Port volume: 62cc
Exhaust Port Dim: 1.410”w x 1.350”t
Exhaust Gasket: Fel-Pro# 1404 Mr. Gasket 150c or Ultra Seal 5900
Flow, Intake: 257 cfm @ .500” lift / 28”
Flow, Exhaust: 172 cfm @ .500” lift / 28”
Push Rod length: Stock thru +.100” Should always measure (Stock length = 7.800”)
Retainers: Steel 10° with 1.437”
straight .750” reach, gasketed, Autolite AR3934
Springs: Our assembly:1.437D = 130# @ 1.800” / .620” max Comp 987
Valve Length: Std 4.935” w/ 1.250 & 1.437 / 5.035” (+.100) w/ 1.550
Valve Train: Std SBC 3/8”
deck thickness is 10mm
valve guides are bronze
maximum lift for the valves 0.575 inches ,14.6mm
Combustion Chamber: 64cc
Intake Runner: 200cc
Exhaust Runner: 62cc
Intake Valve: 2.02"
Exhaust Valve: 1.60"
Valve Guides fitted
Valve Job: 3-angle
I intend to use them on my 71 with 350/270 with th400.
I already have long tube headers and performer intake mounted.
Material: 355T6 alum alloy
Comb Chambers: 64cc
Intake Valve Dia: 2.02”
Intake Port volume: 200cc
Intake Port Dim: 1.190”w x 2.075”h
Int Port Location: Stock
Intake Gasket: Fel-Pro# 1205 Mr. Gasket 106
Exh Valve Dia.: 1.600”
Exh Port volume: 62cc
Exhaust Port Dim: 1.410”w x 1.350”t
Exhaust Gasket: Fel-Pro# 1404 Mr. Gasket 150c or Ultra Seal 5900
Flow, Intake: 257 cfm @ .500” lift / 28”
Flow, Exhaust: 172 cfm @ .500” lift / 28”
Push Rod length: Stock thru +.100” Should always measure (Stock length = 7.800”)
Retainers: Steel 10° with 1.437”
straight .750” reach, gasketed, Autolite AR3934
Springs: Our assembly:1.437D = 130# @ 1.800” / .620” max Comp 987
Valve Length: Std 4.935” w/ 1.250 & 1.437 / 5.035” (+.100) w/ 1.550
Valve Train: Std SBC 3/8”
deck thickness is 10mm
valve guides are bronze
maximum lift for the valves 0.575 inches ,14.6mm
Combustion Chamber: 64cc
Intake Runner: 200cc
Exhaust Runner: 62cc
Intake Valve: 2.02"
Exhaust Valve: 1.60"
Valve Guides fitted
Valve Job: 3-angle
Drifting
Joined: Jun 2012
Posts: 1,990
Likes: 183
From: Port St. Lucie Fl
Are the heads with these specs any good?
I intend to use them on my 71 with 350/270 with th400.
I already have long tube headers and performer intake mounted.
Material: 355T6 alum alloy
Comb Chambers: 64cc
Intake Valve Dia: 2.02”
Intake Port volume: 200cc
Intake Port Dim: 1.190”w x 2.075”h
Int Port Location: Stock
Intake Gasket: Fel-Pro# 1205 Mr. Gasket 106
Exh Valve Dia.: 1.600”
Exh Port volume: 62cc
Exhaust Port Dim: 1.410”w x 1.350”t
Exhaust Gasket: Fel-Pro# 1404 Mr. Gasket 150c or Ultra Seal 5900
Flow, Intake: 257 cfm @ .500” lift / 28”
Flow, Exhaust: 172 cfm @ .500” lift / 28”
Push Rod length: Stock thru +.100” Should always measure (Stock length = 7.800”)
Retainers: Steel 10° with 1.437”
straight .750” reach, gasketed, Autolite AR3934
Springs: Our assembly:1.437D = 130# @ 1.800” / .620” max Comp 987
Valve Length: Std 4.935” w/ 1.250 & 1.437 / 5.035” (+.100) w/ 1.550
Valve Train: Std SBC 3/8”
deck thickness is 10mm
valve guides are bronze
maximum lift for the valves 0.575 inches ,14.6mm
Combustion Chamber: 64cc
Intake Runner: 200cc
Exhaust Runner: 62cc
Intake Valve: 2.02"
Exhaust Valve: 1.60"
Valve Guides fitted
Valve Job: 3-angle
I intend to use them on my 71 with 350/270 with th400.
I already have long tube headers and performer intake mounted.
Material: 355T6 alum alloy
Comb Chambers: 64cc
Intake Valve Dia: 2.02”
Intake Port volume: 200cc
Intake Port Dim: 1.190”w x 2.075”h
Int Port Location: Stock
Intake Gasket: Fel-Pro# 1205 Mr. Gasket 106
Exh Valve Dia.: 1.600”
Exh Port volume: 62cc
Exhaust Port Dim: 1.410”w x 1.350”t
Exhaust Gasket: Fel-Pro# 1404 Mr. Gasket 150c or Ultra Seal 5900
Flow, Intake: 257 cfm @ .500” lift / 28”
Flow, Exhaust: 172 cfm @ .500” lift / 28”
Push Rod length: Stock thru +.100” Should always measure (Stock length = 7.800”)
Retainers: Steel 10° with 1.437”
straight .750” reach, gasketed, Autolite AR3934
Springs: Our assembly:1.437D = 130# @ 1.800” / .620” max Comp 987
Valve Length: Std 4.935” w/ 1.250 & 1.437 / 5.035” (+.100) w/ 1.550
Valve Train: Std SBC 3/8”
deck thickness is 10mm
valve guides are bronze
maximum lift for the valves 0.575 inches ,14.6mm
Combustion Chamber: 64cc
Intake Runner: 200cc
Exhaust Runner: 62cc
Intake Valve: 2.02"
Exhaust Valve: 1.60"
Valve Guides fitted
Valve Job: 3-angle
They look good to me but you also have to watch for quality of the brand, poor or thin castings, bad valve job/seats, loose valve guides are all things that will give you problems.What brand are they?
Thread Starter
Drifting
Joined: Jul 2012
Posts: 1,255
Likes: 297
From: Slovenia, EU
2017 C3 of Year Finalist
They are not you should box them up and send them to me and i will dispose of them for you. They look good to me but you also have to watch for quality of the brand, poor or thin castings, bad valve job/seats, loose valve guides are all things that will give you problems.
What brand are they?
They look good to me but you also have to watch for quality of the brand, poor or thin castings, bad valve job/seats, loose valve guides are all things that will give you problems.What brand are they?
If you can decode from the pics all the better.
Drifting
Joined: Jun 2012
Posts: 1,990
Likes: 183
From: Port St. Lucie Fl
Le Mans Master
Joined: Apr 2001
Posts: 5,941
Likes: 281
From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
200 cc is kind of big for a street engine and an auto trans. You really should look for something in the 180-195 cc size. What camshaft are you running? What other modifications do you have to the engine? They only give you one flow number at .500 lift and it is low compared to better heads like AFR. Both the AFR 195 and AFR 180 street head beat the flow numbers of those heads. Especially on the exhaust side.
Thread Starter
Drifting
Joined: Jul 2012
Posts: 1,255
Likes: 297
From: Slovenia, EU
2017 C3 of Year Finalist
200 cc is kind of big for a street engine and an auto trans. You really should look for something in the 180-195 cc size. What camshaft are you running? What other modifications do you have to the engine? They only give you one flow number at .500 lift and it is low compared to better heads like AFR. Both the AFR 195 and AFR 180 street head beat the flow numbers of those heads. Especially on the exhaust side.
I would like to change the cam, timing gear, heads and everything that comes with them. I aim at around 1500-2000$ budget.
Drifting
Joined: Jun 2012
Posts: 1,990
Likes: 183
From: Port St. Lucie Fl
200 cc is kind of big for a street engine and an auto trans. You really should look for something in the 180-195 cc size. What camshaft are you running? What other modifications do you have to the engine? They only give you one flow number at .500 lift and it is low compared to better heads like AFR. Both the AFR 195 and AFR 180 street head beat the flow numbers of those heads. Especially on the exhaust side.
If they are a reasonable price they could be descent for a budget build, if they are on the higher side you could buy new and exactly what you would need for your build.
Le Mans Master
Joined: Apr 2001
Posts: 5,941
Likes: 281
From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
That they do, but if buying an aftermarket head I would prefer something with better flow numbers down low. Especially on the street where smaller ports and correct velocities help generate the low end torque.
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Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
Still waiting for seller to name them? Tells me they are not very famous. What I do see in the photos reminds me of some complaints a few years back. It seems that some brands of aluminum heads had a low valve cover ridge or pad. (That area between the springs and the exhaust ports). The higher the better to contain the oil before it drains into the lifter valley. It seems that the valve cover gasket didn't have a fighting chance of not leaking with a low oil dam. Hard to tell in the photo but seems shallow on the inside. That could also mean tall valve covers are a must to clear the rockers.
Melting Slicks
Joined: Mar 2008
Posts: 2,666
Likes: 289
From: Spring Park MN
If they are Brodix, they will say Brodix on the head and have serial numbers on them. Ask him for photos of the name and serial numbers.
Mike
Mike
Last edited by v2racing; Aug 31, 2017 at 02:39 PM.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
bet they are brodix knockoffs they are everywhere on ebay sold under different brands could be all the same who knows what they really are
edit 10 mm deck?????someone posted a pic of those yesterday carried the scorpion name.
edit 10 mm deck?????someone posted a pic of those yesterday carried the scorpion name.
Last edited by cv67; Aug 31, 2017 at 07:07 PM.
Thread Starter
Drifting
Joined: Jul 2012
Posts: 1,255
Likes: 297
From: Slovenia, EU
2017 C3 of Year Finalist
But on the other hand I've found edelbrock heads at Jegs for about $200 more but that is because of the customs.
Burning Brakes
Joined: Nov 2011
Posts: 1,170
Likes: 201
From: Willoughby Ohio
But every now and then people get lucky.A friend of mine just found a bare set of 195 Pro-Filers for 600 dollars on craigslist.
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
A cylinder head w/o a brand name and casting numbers is just a set up. I wouldnt even bother to look at the specs of a no-name part that costs what $840. The sbc is the cheapest V8 engine to rebuild and buy performance parts for in the world. If you dont have the budget for good parts for a sbc maybe you need another hobby. I just dont have sympathy for those so budget minded they want someone to substantiate a poor idea of using substandard or questionable parts. There very good heads for just a little more money that would pay for a what couple of dinner dates, or golf rounds, or ski lift tickets. For an additional $300-$500 you can buy quality heads to bolt on and go. If you can only budget for no-name parts I guess I have to say I think you choose another hobby.
Thread Starter
Drifting
Joined: Jul 2012
Posts: 1,255
Likes: 297
From: Slovenia, EU
2017 C3 of Year Finalist
A cylinder head w/o a brand name and casting numbers is just a set up. I wouldnt even bother to look at the specs of a no-name part that costs what $840. The sbc is the cheapest V8 engine to rebuild and buy performance parts for in the world. If you dont have the budget for good parts for a sbc maybe you need another hobby. I just dont have sympathy for those so budget minded they want someone to substantiate a poor idea of using substandard or questionable parts. There very good heads for just a little more money that would pay for a what couple of dinner dates, or golf rounds, or ski lift tickets. For an additional $300-$500 you can buy quality heads to bolt on and go. If you can only budget for no-name parts I guess I have to say I think you choose another hobby.