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Author
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Topic: Opinions on heads????
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Dag302
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Member # 4682
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posted
 
 
I wanted to know if you guys think the heads I am running are to much for my combo?
The motor is a 331 fully forged with a vortech with aftercooler running 12lbs boost. It has a trick flow R(non box type) manifold.
The heads are TFS Hi-ports. They are the old style KPI/TFS ones. They have 62cc cambers and have been extrude honed by CHP in southern cal.Flow rate 300cfm at .600 lift. They have shaft mount T&D rockers.
The cam is a comp cam: CCA-35-312-8
Intake Duration at 050 inch Lift: 220
Exhaust Duration at 050 inch Lift: 224
Duration at 050 inch Lift: 220 int./224 exh.
Advertised Intake Duration: 276
Advertised Exhaust Duration: 280
Advertised Duration: 276 int./280 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.544 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.560 in.
Valve Lift with Factory Rocker Arm Ratio: 0.544 int./0.560 exh. lift
Lobe Separation (degrees): 114
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04 Expedition 4X4
93 Cobra #822
96 Cobra
Posts: 2842 | From: Sacramento | Registered: Jul 2004
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kingmoochr
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Member # 5834
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posted
hard to find a head thats too much for a blown stroker, why do you ask?
Posts: 880 | Registered: Jul 2005
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Dag302
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Member # 4682
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posted
Someone had told me that my combo may be better with a smaller head. Maybe he just wants the heads I am running ![[Smile]](smile.gif)
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04 Expedition 4X4
93 Cobra #822
96 Cobra
Posts: 2842 | From: Sacramento | Registered: Jul 2004
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CornOil_&_Boost
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Member # 5888
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posted
Those heads are going to be a little much for that combo...but don't trade them just yet...especially if that someone wants to trade you Victor Jr's...
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https://www.facebook.com/pushrodpoweredmustangs
'95 Cobra - small engine / small turbo -
'02 Excursion 7.3 - tow vehicle
'14 - Chevy Volt - DD
Posts: 5097 | Registered: Jul 2005
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kingmoochr
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Member # 5834
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posted
that blower is going to want to move air. shaft rockers, im assuming solid roller lifters and a big cam since you posted .600 lift cfm. if you plan on taching over 6k and want to make big numbers on top, keep them. if you want an ubertorque low rpm big rig, then yes, smaller. DONT spend any money changing them
Posts: 880 | Registered: Jul 2005
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kwikrob
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Member # 835
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posted
the heads are only going to flow as much as you put thru them. if you are worried about low rpm power, ditch the heads. if you're not(and i doubt you are), keep them
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Slowest car on this board!
Posts: 382 | From: Bay Area | Registered: Feb 2002
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