Another 383 build
Thread Starter
Safety Car
Joined: Dec 2012
Posts: 3,814
Likes: 1,723
From: Summerville SC
Another 383 build
OK, I have a good block and crank for my 383. Want somewhere in 350-400hp neighborhood with good street manners. Plan on driving it a lot. I have a chance to pick up a pair of Trick Flow 30410001 SBC Aluminum heads for a really good price. No choice on cam yet since I want to get the heads right first. Would they be a good foundation to build on. I don't want to blow the budget or make some outrageous HP, just a little street rod '78 w 220R4 trans I already have. Thanks.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
That part number is listed here. Pretty poor flow for a 195 head but will support 400 HP and 5500 RPM. http://www.users.interport.net/s/r/s...ehdc.htm#Chevy
Melting Slicks
Joined: Mar 2006
Posts: 3,456
Likes: 102
From: Piedmont Va
St. Jude Donor '11-'12-'13,'19-'20
Check out a Howards roller kit in the .500 lift range and it will put you nicely above 400hp with a sweet torque curve...Dont make the mistake I did..I .built mine the first time under cammed with flat tappet thinking I wanted it streetable. 
It is now not only very streetable, but very powerful...
It is now not only very streetable, but very powerful...
Melting Slicks
Joined: Apr 1999
Posts: 2,010
Likes: 3
From: Moon Twp. PA USA
63mako or anyone else:
How much, actually, is 10 cfm flow or 20 cfm flow worth HP/Torque wise? Yes I know it depends on the rest of the engine, especially the cam, but how much is it worth using a cam of 0.500 lift and a duration of 230*@0.050? Is there any formula that can be used to determine that? I used the above numbers because those are the numbers for the CC XE274 flat tappet cam that I have in my 383.
How much, actually, is 10 cfm flow or 20 cfm flow worth HP/Torque wise? Yes I know it depends on the rest of the engine, especially the cam, but how much is it worth using a cam of 0.500 lift and a duration of 230*@0.050? Is there any formula that can be used to determine that? I used the above numbers because those are the numbers for the CC XE274 flat tappet cam that I have in my 383.
Drifting
Joined: Jul 2013
Posts: 1,299
Likes: 93
From: Tri-Cities TN
63mako or anyone else:
How much, actually, is 10 cfm flow or 20 cfm flow worth HP/Torque wise? Yes I know it depends on the rest of the engine, especially the cam, but how much is it worth using a cam of 0.500 lift and a duration of 230*@0.050? Is there any formula that can be used to determine that? I used the above numbers because those are the numbers for the CC XE274 flat tappet cam that I have in my 383.
How much, actually, is 10 cfm flow or 20 cfm flow worth HP/Torque wise? Yes I know it depends on the rest of the engine, especially the cam, but how much is it worth using a cam of 0.500 lift and a duration of 230*@0.050? Is there any formula that can be used to determine that? I used the above numbers because those are the numbers for the CC XE274 flat tappet cam that I have in my 383.
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