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Author Topic: what are the correct heads for a 77 400 SE?  (Read 878 times)

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Offline rhino33

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what are the correct heads for a 77 400 SE?
« on: December 02, 2010, 07:53:08 PM »
can someone confirm the correct heads for my 77SE?
I think they are supposed to be 6X
is there a link or older post that covers this?
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Offline fb_rider

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Re: what are the correct heads for a 77 400 SE?
« Reply #1 on: December 02, 2010, 08:19:58 PM »
Depends if it's a W72 engine or not.  6X4 for the W72.
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1977 Trans Am SE w/W72 engine (sold)
1999 Trans Am Anniversary Edition #953 (sold)
2000 Trans Am Firehawk #263

Offline rhino33

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Re: what are the correct heads for a 77 400 SE?
« Reply #2 on: December 02, 2010, 08:45:31 PM »
my car is PHS doc`d and a 4 speed /  WA engine code
6X4 it is then
thanks
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Offline 4SPEED

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Re: what are the correct heads for a 77 400 SE?
« Reply #3 on: December 02, 2010, 10:16:59 PM »
yes , thats a 77 W72 400  4 speed  code.     6x8's are on the L78 400
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Offline rhino33

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Re: what are the correct heads for a 77 400 SE?
« Reply #4 on: December 03, 2010, 04:33:51 PM »
thumbs up
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Offline rhino33

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Re: what are the correct heads for a 77 400 SE?
« Reply #5 on: December 06, 2010, 09:10:34 PM »
Is the rocker arm ratio 1.52 ?

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