AFR 205 heads
12-13-2009, 10:04 PM
#1
AFR 205 heads AFR 205 Mongoose LS1 cylinder heads - Less than 2000 miles since NEW
- The heads have been inspected and cleaned by a reputable race shop in Missouri.
- NEW surface mill to 62cc (15 Ra)
- NEW valve seals
- Valve job inspected and touched off, exhaust valves back cut to enhance flow
- NEW Patriot 'gold' springs set up @ 1.750" (135# seat/ 365# Open)
- Good to .620" lift
- Chambers opened up to 4" bore for use on either LS2/LQ4/LQ9 or LS1 (small bore)
These heads are in better condition than when they came from AFR!!
SOLD
- The heads have been inspected and cleaned by a reputable race shop in Missouri.
- NEW surface mill to 62cc (15 Ra)
- NEW valve seals
- Valve job inspected and touched off, exhaust valves back cut to enhance flow
- NEW Patriot 'gold' springs set up @ 1.750" (135# seat/ 365# Open)
- Good to .620" lift
- Chambers opened up to 4" bore for use on either LS2/LQ4/LQ9 or LS1 (small bore)
These heads are in better condition than when they came from AFR!!
SOLD
Last edited by helicoil; 12-22-2009 at 11:36 PM. Reason: Title change
12-17-2009, 12:57 AM
#6
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I had my darts on my cart actually on a lq4 stock block actually helped out alot GREAT PRICE ALSO BRO
VALVE SIZE 2.05 INTAKE 1.60 EXHAUST
SPRINGS-650 LIFT PATRIOT GOLDS OR PRC GOLDS
COMBUSTION CHAMBER CC 64CC
HEADS EVER MILLED NO
STEEL RETAINERS R TITANIUM?TIT
INTAKE RUNNER WAS 205 CNC PORTED TO A 225 RUNNER
VALVE SIZE 2.05 INTAKE 1.60 EXHAUST
SPRINGS-650 LIFT PATRIOT GOLDS OR PRC GOLDS
COMBUSTION CHAMBER CC 64CC
HEADS EVER MILLED NO
STEEL RETAINERS R TITANIUM?TIT
INTAKE RUNNER WAS 205 CNC PORTED TO A 225 RUNNER
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12-17-2009, 08:14 AM
#8
See above^^^
[QUOTE=bad2dbone;12632998]I had my darts on my cart actually on a lq4 stock block actually helped out alot GREAT PRICE ALSO BRO
You got it right.
12-20-2009, 01:56 PM
#13
Question 1: The valve images shown are to illustrate that the valves and seats were lapped together with a 600 grit lapping compound. Common test to 'visualize' the valve job is good, which it is (less than 2000 miles on the heads)
Question 2: These are the orginal AFR valves, they are in Excellent shape. The only additional work that has been performed is the exhaust valves have had a 32* backcut angle faced in. The 'stock' AFR exhaust valves do not come this way. It is an enhancement to the valve job.
Question #3: The springs are an upgrade to the stock AFR valve springs, they have a little more seat pressure and a little more Open pressure by comparison to the stock AFR springs. This translates to better valve control at higher RPM's. The spring is normally good to .650" lift. @ 1.800" installed heights. They are installed @ 1.750" heights to give them the most pressure available and can handle a .620" gross lift camshaft with having .070" clearance before coil bind.
FYI guys, great questions, keep them coming. These heads have several of the mods that Tony Mamo would perform himself when upgrading a set of these. They are in very nice condition and ready to install on your engine. I don't sell junk!
Trick Flow 215 heads chambers measured for width..
3.975" side to side
AFR 205 chambers measured for width.
3.987" side to side - that is only .015". Go and get a feeler gauge and look at a .015" blade. Doesn't account for much. So Yes, they work on small bore LS1's, just like a TFS 215 will.
Last edited by helicoil; 12-20-2009 at 02:04 PM.
