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AFR 185cc Emission Legal by Air Flow Research
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2 14715
Recommended By Average Price Average Rating
50% of reviewers $1,350.00 3.5


Description: If you need the world’s finest street/strip small block Ford head, check out AFR’s all new 185cc intake port emissions legal (CARB EO #250-3) cylinder heads.
With 2.020 intake valves, 1.600” exhaust valves, combustion chamber volumes of 58cc or 61cc, and 69cc exhaust ports, AFR’s new 185cc Ford head is designed for 302-351 cid engines operating from 1500 rpm to 6500 rpm. A 3/4” thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms.
Hardened pushrods required with heads #1420 and #1422. High flow 2.020 valves might require aftermarket pistons notched for valve clearance. Note: 1986 5.0L must have pistons notched for clearance.

Hydraulic roller cams typically experience valve float at 5800-6000 rpm because of their fast ramp rates. AFR suggests you upgrade your springs to AFR part #8032, 1.530 O.D. with higher spring pressures to reduce chances of valve float associated with rpm’s 6000 or higher.

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BOSS Member
Posts: 4,459
Registered: April 2002
Location: Mexico


MACH I Member

Registered: February 2003
Location: Wayne
Posts: 2956
Review Date: 6/25/2003 Would you recommend the product? Yes | Price you paid?: $1,350.00 | Rating: 5 

Pros: quality
Cons: none

Very clean heads . The port work is really smooth . The quality of theese heads are excellent . I feel that they were worth every cent

Never argue with an idiot. They will bring you down to their level and beat you with experience...
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Registered: January 2009
Location: goodlettsville
Review Date: 1/29/2009 Would you recommend the product? No | Price you paid?: None indicated | Rating: 2 

Pros: good airflow
Cons: valves r junk

if u buy these heads make sure u replace the valves first. i have found out the hard way and so has many other people i know
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