cylinder head q
Thread Starter
Junior Member
Joined: Dec 2008
Posts: 67
Likes: 0
From: Fort Lauderdale, Fl
Car: 1989 Pontic Trans Am GTA
Engine: old 350TPI/new LS1
Transmission: old 700R4/new 4L60E
Axle/Gears: 3.27 stock
cylinder head q
whats the difference between cylinder heads with the traditional valve cover bolts (on the outside), and the center bolt valve covers..also is there a difference in how the ignition coils mount??
Thread Starter
Junior Member
Joined: Dec 2008
Posts: 67
Likes: 0
From: Fort Lauderdale, Fl
Car: 1989 Pontic Trans Am GTA
Engine: old 350TPI/new LS1
Transmission: old 700R4/new 4L60E
Axle/Gears: 3.27 stock
Re: cylinder head q
yes i meant to say the LS motors...also can the ignition coils off a 98 camaro LS1 (with perimeter valve cover bolts) fit on the new style valve covers with center bolts..
Senior Member
iTrader: (1)
Joined: Jan 2009
Posts: 959
Likes: 0
From: Houston TX
Car: 02 SS
Engine: 408 TT (1108rw-93/m1)6700rpm
Transmission: TH400(slipping)
Axle/Gears: 12bolt/3.42(whines😠)
Supreme Member
Joined: May 2004
Posts: 2,924
Likes: 1
From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
Re: cylinder head q
There are no difference in the flow numbers between the perimeter bolt and center bolt covers (according to my source that knows these motors inside and out) except the way the coils mount (bracket vs direct to the cover)
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