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11-25-2009, 06:49 PM
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#1 |
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Registered User
Join Date: Oct 2006
Location: bridgecreek ok.
Posts: 1,214
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afr 345 big block heads
I can buy a set of 345 afr's for $1200 and wondering if these would be to big for my 431? My iron heads are 320 with alot of port work etc.etc. I need to let him know before tomorrow or he's going to post them up for sale...He says that they only have 40 passes on them and i can hear them run on his car before he pulls them...
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http://67-72chevytrucks.com/vboard/s...d.php?t=494388 431 big block times, changed to a 6.0 ls with turbo 1.58- 60' 7.18- 1/8th mile@95.18 11.37- 1/4 @115.81 |
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11-25-2009, 09:11 PM
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#2 |
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Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,892
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Re: afr 345 big block heads
I'd go for it. It will save you a bunch of weight. You might want to pm big Jim I think he runs afrs.
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Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
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11-26-2009, 12:23 PM
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#3 |
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On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: afr 345 big block heads
Friend of mine runs cnc afr 335's on his 9:1 427....thing makes a TON of torque. Get 'em!!!!
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'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD Last edited by swb85; 11-26-2009 at 12:23 PM. |
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11-26-2009, 12:25 PM
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#4 |
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Registered User
Join Date: Apr 2008
Location: Imperial Beach, CA
Posts: 1,040
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Re: afr 345 big block heads
Id get them just for the savings, They are a little to big but if you get a bigger stall and maby take another look at your cam you would be good. It is just going to take you longer in the RPM's to make all the power.
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69 c-10 BBC  462ci, forged crank, H-beam rods, 10.5-1 KB forged pistons, Dart Iron Eagle 308cc, Straub Cam, Comp Cams chrome moly full rollers, Weiand Team G, Prosystems 950, TH400/3500 Dalenzie stall, Currie 9+ Detroit Locker w/31spline axles.  3.5/6in drop. My Build.
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11-26-2009, 02:03 PM
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#5 |
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Registered User
 
Join Date: Jul 2007
Location: Ottawa Ontario Canada
Posts: 1,156
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Re: afr 345 big block heads
Get 'em. That's a good deal. They're a bit big for your combo, but you'll have an awesome top end if you build it right - or you could always add a blower...
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11-27-2009, 12:03 AM
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#6 |
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Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,892
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Re: afr 345 big block heads
when I was on pass time I had a 390cfm head on a 468. If you run a little spray they would love it.
__________________
Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
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