Building A 460 - Much Help Needed!
Posting Guru
Joined: May 2010
Posts: 1,867
Likes: 3
From: Alton, MO
You won't get 9.5:1 with 95cc heads unless you deck the block, run higher compression pistons for your block, both or some combination that will increase compression. Your compression should be something like 8:1 with (I think) 93cc chambers. 1st you will be increasing your volume by moving to 95cc chambers which will lower your compression unless you do something to compensate for it. If it were me & I am not saying buy the Edelbrock heads, I would buy the smaller chambers & you still will not be at 9.5:1 but at least quite a bit closer. The smaller chamber more closely resembles the early heads that are the good cast heads. This is assuming the heads are the same with exception of chamber size.
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Laughing Gas
Joined: Jul 2012
Posts: 1,123
Likes: 0
From: Southern Illinois
I was planning with higher compression pistons., but I may just get the block decked, or may get the smaller heads. All depends on the condition of the internals of the motor I buy I guess. We will see. Scott pointed me toward a great shop here local so when it's time, the machine shop and I can figure out what I need to do to get my results.
Posting Guru
Joined: May 2010
Posts: 1,867
Likes: 3
From: Alton, MO
I was planning with higher compression pistons., but I may just get the block decked, or may get the smaller heads. All depends on the condition of the internals of the motor I buy I guess. We will see. Scott pointed me toward a great shop here local so when it's time, the machine shop and I can figure out what I need to do to get my results.
Scott's website
Messed up, he is in WA not MI. I talk with a guy from MI that is also pretty knowledgeable on these engines. I would also bet the expense may be lower with this new shop. He sent you to someone who knows the 385 series so they won't waste any moves.
New User
Joined: Dec 2004
Posts: 14
Likes: 0
From: Taylorville, IL
Keep us updated... I'm not far from you, just outside of Springfield. I'm shooting for 500-600 HP myself, selling my Mustang (anyone interested lol) so this is my new toy. I like the aluminum for the weight reduction as well, and cost for me is worth it between machining my current as well as rebuilding the stock, besides I don,t think I have the good heads. Anyway, if nothing else its a new adventure :-)
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Laughing Gas
Joined: Jul 2012
Posts: 1,123
Likes: 0
From: Southern Illinois
Keep us updated... I'm not far from you, just outside of Springfield. I'm shooting for 500-600 HP myself, selling my Mustang (anyone interested lol) so this is my new toy. I like the aluminum for the weight reduction as well, and cost for me is worth it between machining my current as well as rebuilding the stock, besides I don,t think I have the good heads. Anyway, if nothing else its a new adventure :-)
Cargo Master
Joined: Oct 2010
Posts: 2,339
Likes: 32
From: Lost In a Pit of Despair
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Laughing Gas
Joined: Jul 2012
Posts: 1,123
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From: Southern Illinois
I have had that manifold recommended to me by multiple people. Its on my list haha I will obviously be using a 750 or 800 carb though haha
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