AFR 225's (PN 1630) 70cc (+) springs

12-03-2012, 02:12 PM

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FMX05

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AFR 225's (PN 1630) 70cc (+) springs

Category: Racing Parts
Price: $1850
Location (State): SC
Item Condition: Used
Shipping Information: Item Can be Shipped
Engine: LS2/LS3/LS7/L92/LS9, LS1/LS6
LS Engine?: Fits LS Engine

Up for sale is a set of AFR 1630's I bought from a forum member a year and a half ago. I'm building a turbo car and I'm pursuing a bigger setup. I never installed them. They came off of a procharged stock bottom end LS3 C6. I contacted AFR and gave them the number on the build sticker. They said they were originally ordered as 72cc chambers. The guy I bought them from CC'd them and got 70cc's doing it himself so they are between 70 and 72cc's. They have not been hot tanked so there is some carbon in the chambers and what not. They have the valve guides installed and the valves are in a separate bag. These are great heads! They can take your 4 bolt block about as far as you want to take it. Many people have made over 1000whp with them. The .750" thick deck and the ability to use stock rockers is why I chose them. They did not have springs on them when I bought them.

Here are some pictures as they sit right now:

I'll take $1850 shipped on the heads to anywhere in the lower 48. That's eating the difference over what I paid for them in 2011.

If you need springs, I have a set of Patriot Xtreme gold duals that I have had for awhile that I can include for $200. The label on the box is faded from sitting on a shelf but they are PN 8501's. The kit is complete with Ti retainers, seals, locks, and bases.

Install Height: 1.800"
Max. Valve Spring Lift: 0.660"
Spring Pressure Closed: 155 lbs. @ 1.800"
Spring Pressure Open: 410 lbs. @ 1.140"
Coil Bind: 1.090"
Retainer Material: Titanium