AFR 225's on a 346?
AFR 225's on a 346? I was wondering if there were any issues with running AFR 225's on a stock displacement motor. Piston to valve, valve to cylinder wall? I was planning on running a cam in the high 220's low 230's. Is any one running these on your 3.900 bore?
Brett
Brett
Last edited by Pray; Feb 3, 2007 at 07:18 PM.
Originally Posted by Pray
I was wondering if there were any issues with running AFR 225's on a stock displacement motor. Piston to valve, piston to cylinder wall? I was planning on running a cam in the high 220's low 230's. Is any one running these on your 3.900 bore?
Brett
Brett
Hammer
On The Tree
Joined: Mar 2005
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heads sorry to jump in but i'm in the market for heads but from what i've seen like from ttperformance and even afr does say if you have a wild 346 with a big cam and lots of spray or stroked then use this one. i have 346 motor with the xx cam so i want to make as much power as possible, i was thinking about getting the trickflows or getting the afr 225 and porting them out even more or porting out the rhs heads i got this idea from racing prep engineering
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hopefully 228/232 range on cam. 225's will do the job, but from the way the 205's have been performing, there hard to beat. i think most of the 205's people are using have been ported.
There are ton's of results on the 205's. LG went a 10.4 at 141 mph in their race vette (2950 lbs) with a 346 CI and 205's out of box some time ago. The 225's will shine more on a large bore setup. Look at this thread https://ls1tech.com/forums/dynamometer-results-comparisons/384450-383-engine-dyno-results-graphs-included.html. Lots of good info/testing in here from Tony.
Dan
Dan
Originally Posted by Pray
I was wondering if there were any issues with running AFR 225's on a stock displacement motor. Piston to valve, piston to cylinder wall? I was planning on running a cam in the high 220's low 230's. Is any one running these on your 3.900 bore?
Brett
Brett
Thanks for the imput guys. I went with the 205's. I don't think any thing N/A is going to feel fast right now. I just had to sell my FI combo that was making 635rwhp to finance my new motor. I think the 205's are a great choice right now. The car will be a mid size cammed daily driver. I can port them later and grow if I want to put more motor under them. A few friends of mine are having great results with the 205's on stroker motors as well.
67RS. I just realized that I put Piston to Cylinder. I think I do want that. I meant Valve to Cylinder but I am sure you already got that.
67RS. I just realized that I put Piston to Cylinder. I think I do want that. I meant Valve to Cylinder but I am sure you already got that.
Originally Posted by bobby1
sorry to jump in but i'm in the market for heads but from what i've seen like from ttperformance and even afr does say if you have a wild 346 with a big cam and lots of spray or stroked then use this one. i have 346 motor with the xx cam so i want to make as much power as possible, i was thinking about getting the trickflows or getting the afr 225 and porting them out even more or porting out the rhs heads i got this idea from racing prep engineering
Hammer
Originally Posted by Pray
Thanks for the imput guys. I went with the 205's. I don't think any thing N/A is going to feel fast right now. I just had to sell my FI combo that was making 635rwhp to finance my new motor. I think the 205's are a great choice right now. The car will be a mid size cammed daily driver. I can port them later and grow if I want to put more motor under them. A few friends of mine are having great results with the 205's on stroker motors as well.
67RS. I just realized that I put Piston to Cylinder. I think I do want that. I meant Valve to Cylinder but I am sure you already got that.
67RS. I just realized that I put Piston to Cylinder. I think I do want that. I meant Valve to Cylinder but I am sure you already got that.
I'm looking at the same heads. AFR 205 or AFR 225. I was thinking the 225's over the 205's. I am using nitrous, 150-200 shot. Anyone have any results with these heads and nitrous?
I have a forged 346 I built mainly to take spray, it has a fast 90 as well.
I have a forged 346 I built mainly to take spray, it has a fast 90 as well.
