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#1 |
Registered Member
Join Date: Sep 2004
Location: jersey
Posts: 147
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![]() I’m ready to install gt 40 aluminum heads on my 5.0 with a new set of headers, but which headers do I buy? 5.0 Or 351 headers?
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#2 |
I'm slow ...I know.
Join Date: Dec 2003
Location: houston
Posts: 518
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![]() what car do you have? buy headers to fit your car
if your car is a 5.0 ...just buy 5.0 headers the exhaust ports are the same on 351/302 heads
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When you do things right, people won't be sure you've done anything at all... |
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#3 |
Registered Member
Join Date: Sep 2004
Location: jersey
Posts: 147
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![]() It’s a 92 coupe 5.0, but most header listings list the mustang with a 5.0 and 351 motor, so I’m not sure if I should purchase the headers for the 5.0 motor or the 351 motor. Because the SVO GT 40 heads are 351 heads.
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#4 |
Registered Member
Join Date: Nov 1998
Location: Houston, Tx.
Posts: 3,887
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![]() While the 302W/351W heads have the same exhaust ports, some of the 5.0 heads (P heads come to mind) have different exhaust ports. The 351w block is somewhat taller than the 302W/5.0 block. You will want headers for 5.0 block as mentioned by FatOeknee. If you have "P" heads, then it's a whole different ball game.
Rev
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'66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe |
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#5 |
Registered Member
Join Date: Sep 2004
Location: jersey
Posts: 147
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![]() Thanks it all makes sense
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#6 |
Rat Killer
Join Date: Aug 2002
Location: Cold ass Ohio
Posts: 1,143
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![]() 351 headers are taller, they'll bolt onto your heads, but won't fit in the car very well at all.
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d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply..... ![]() |
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#7 |
Import Slayer
Join Date: May 1999
Posts: 2,241
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![]() I would have thought the 351w header would work because actually, they run tighter to the engine because of the extra width of the 351.
I know, for a fact, that 302 headers won't fit into a foxbody mustang that has a 351w.
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'82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator. |
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