Hey I was just wondering if what you guys think about the AFR cylinder heads. Just doing some homework so any info would be great.
Hey I was just wondering if what you guys think about the AFR cylinder heads. Just doing some homework so any info would be great.
99 excab, Nelson Tune, k&n FIPKII, pacesetter long tubes, No Cats, Dual Magnaflows with turndowns,
1/4: 15.66@88.1 Before Nelson, headers, and de-cating
Also 69 camaro SS 350 4speed, 13.81@103.6, Ls1 swap planned
Good choice. Nobody manufactures better heads than AFR, IMO. Their heads have a thicker deck to handle NO2 and blower applications. You can get almost any size compression dome you desire. They have different size valves and porting styles available for your application. For the money they are definitely a good value. Their heads flow better than most porting company's, also.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Unless you're going all out, some polished 6.0 heads (big chamber, diff cast... sand vs SPM LS6) with LS6 valves would be fine... They flow excellent stock.
I do not think you'll see enough gains to warrant the cost of the AFRs on a bolt-on or N/A application. Gen III heads just are great stock, so it's hard to improve upon a good item already.
The superior man is modest in his speech, but exceeds in his actions. - Confucius
"He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel
'01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
'80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL
Let's face it, the red hair... makes 'em wet.
A member of the GTO comm. did a AFR head swap only and picked up 40tq/50hp.
Check out this thread for reference.
http://www.ls1gto.com/forums/showthread.ph...2&highlight=afr
2000 5.3L A4
Fuddle 2800 + CF 100 jet + HP Tuners
ETstreets + Dual cut outs + KP 4 link
http://memimage.cardomain.net/member.../496250_63.jpg
Yeah, $2300 sounds pretty pricey to pick up only 50hp when for $4000 you can bolt on an STS and pick up over 200 hp. They're still some awesome heads.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
How much boost is needed to make 200hp+ w/ the STS? Is this the standard deal or with an upgrade it is capable of 200hp+?
2000 5.3L A4
Fuddle 2800 + CF 100 jet + HP Tuners
ETstreets + Dual cut outs + KP 4 link
http://memimage.cardomain.net/member.../496250_63.jpg
Remember that's AFR over the LS1 cast, not the LS6/6.0 ones...
The superior man is modest in his speech, but exceeds in his actions. - Confucius
"He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel
'01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
'80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL
Let's face it, the red hair... makes 'em wet.
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