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07-01-2009, 07:48 PM #1
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black- 99 hard top
Running an L76 Manifold on an LS1
Has anybody every tried running an L76 manifold on a stock displacement ls1?
Just wondering if it even bolts up. I would it would flow more than a LS6 since it is used on the L92 head.
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07-01-2009, 07:53 PM #2
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- Mar 2009
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- chandler, AZ
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black- 99 hard top
nevermind I found the info in the archives. I thought the cathedral shape would fit inside the tall rectangle, but I don't think it will plus the ports look to be much higher.
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07-03-2009, 06:59 AM #3
you need the L92 heads to run the L76 intake manifold.
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07-04-2009, 11:24 AM #4
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- Mar 2009
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black- 99 hard top
I wish I could run the L92 heads. Nice head at a nice price, but you need a 4 inch bore.
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07-06-2009, 12:05 PM #5
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- Oct 2008
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- St. Charles, IL
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- 37
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- 122
Navy Blue Metallic- 1999 Trans Am WS6
I think Mast Motorsports sells rectangular port heads for LS1s (~3.905" bore), to which you could bolt on an L76 intake. That would be a sweet setup!
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07-08-2009, 10:26 AM #6
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- Mar 2009
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- chandler, AZ
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black- 99 hard top
Wow, those are some monstrous heads, 253cc intakes. That's kind getting away from the point of using an L76 as a budget intake when you spend $2,600 on a set of unassembled heads. Too big my application anyway. I will probably go with TSP 5.3 heads and LS6 intake. Maybe at a latter date I will upgrade to a FAST. I'm surprised at the price they are asking nobody has just copied it even as a one piece manifold.
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