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Old 10-28-2013, 10:25 PM   #29
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Originally Posted by wnt2gofst View Post
I am having same heads done on my ls3 vette right now. But they are milled to 64cc from 69cc(stock) to raise compression. I'm also doing a FAST/NW TB and clutch with lighter flywheel.

Didn't see your cam specs. But Vengeance suggested I stay with my current cam. Which isn't wild. But performed pretty good. 230/234 614/598 114+2.

I will be adding spray come spring snd if cam/head combo don't perform well will swap it out.

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Nice in for your results also!! What will your compression be?
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Old 10-29-2013, 02:09 PM   #30
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I've been scheduled with Shawn at Lethal Racing and decided to see if anyone has done what I'm planning on doing. You seem to be the only one I came across. Best of luck and hope you get some great results.
Shawn is working on a vert with the trickflows right now...... should be done by friday........ what all are you planning on doing
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Old 10-29-2013, 03:39 PM   #31
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Shawn is working on a vert with the trickflows right now...... should be done by friday........ what all are you planning on doing
Sorry to the OP for the highjack!
Yeah Shawn spoke about that car. I'm doing TFS 255 heads milled for higher compression, a new cam he has been working on that is a little more aggressive compared to the NF cam, 4.11 gears, Eaton Truetrac, LT's, ZL1 3" SW retro exhaust, UD pulley, ported intake mani, ZL1 rear diffuser, and a few things here and there. Not to much...


Car already has CAI, VMAX TB, FR ZL1 rims, and a host of suspension mods, custom powder coat on powder coat brake calipers to match rims.

I was debating FI or NA for months now. I decided since every car I've had has been FI, I decided its time for a NA car that will have a NASSTY setup on the stock LS3 block. When I'm tired of that I will keep the TFS heads and go bigger displacement.

Last edited by flashtech; 10-29-2013 at 08:45 PM.
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Old 10-30-2013, 03:42 PM   #32
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Nice in for your results also!! What will your compression be?
Will be around 11.5:1

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Old 10-30-2013, 07:00 PM   #33
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Yeah, kinda what I was saying. Once you are chasing power with heads, you likely need to swap cams.
I couldn't find any before/after heads dyno charts or time slips.
Throw up a few of the ones you mention for us to look over if you don't mind.
The article mentioned was all I could find.

Mine was RPC 255 heads, 469 baseline 491 after heads installed. Car was already cammed, intake, full exhaust, cai, tune, under-drive pulleys, throttle body, and I guess that is it.
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Old 10-30-2013, 08:01 PM   #34
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The vert he is working on is mine. Milled TF 255 heads,cam,Roto-fab,SDPC Headers,No Weeds Cut outs,Hi Flow cats,B&B Exhaust,3400 Yank,Trans cooler and a few other items. lookin to get 500+ rwhp
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Old 10-30-2013, 08:19 PM   #35
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Originally Posted by toot toot View Post
The vert he is working on is mine. Milled TF 255 heads,cam,Roto-fab,SDPC Headers,No Weeds Cut outs,Hi Flow cats,B&B Exhaust,3400 Yank,Trans cooler and a few other items. lookin to get 500+ rwhp
Your doing it right! At the right place too! Keep us posted. Start your thread. You'll get lots of subscriptions that's for sure.
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Old 10-30-2013, 09:36 PM   #36
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Originally Posted by toot toot View Post
The vert he is working on is mine. Milled TF 255 heads,cam,Roto-fab,SDPC Headers,No Weeds Cut outs,Hi Flow cats,B&B Exhaust,3400 Yank,Trans cooler and a few other items. lookin to get 500+ rwhp
Yep guys, go them all shaved , measured and bolted on today! I should be firing it up tomorrow!

We are interested in seeing the results also. Toot, I will add a catch can also. the oil blowby from the intake after you putting only 400 mikes on you new car was pretty noticeable.....
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Old 10-30-2013, 09:41 PM   #37
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Yep guys, go them all shaved , measured and bolted on today! I should be firing it up tomorrow!

We are interested in seeing the results also. Toot, I will add a catch can also. the oil blowby from the intake after you putting only 400 mikes on you new car was pretty noticeable.....

Can't wait for the outcome of Toot's beast!! I will be dropping off my car this weekend and looking forward to meeting y'all. Can't wait on the TFS heads and cam!
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Old 10-30-2013, 10:41 PM   #38
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Originally Posted by flashtech View Post

I was debating FI or NA for months now. I decided since every car I've had has been FI, I decided its time for a NA car that will have a NASSTY setup on the stock LS3 block. When I'm tired of that I will keep the TFS heads and go bigger displacement.
Alright!! N/A !!!!!!!
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Old 11-05-2013, 09:58 PM   #39
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Anyone got results yet. My car pickup got pushed back to this friday.

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Old 11-06-2013, 09:07 PM   #40
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Hey guys. I finally got my install done as well. It took a long time. There were some hiccups along the way but I got it done. For someone installing a head and cam package for the first time I think things went relatively well.

I broke one bolt, my initial pushrod measurement was wrong but I now have it all together and she runs strong!

I'm currently trying to talk Tim at T&T to let me strap my car to his dyno this weekend so I can see what I have ended up with.

I'll be able to provide before and after dyno results since I used Tim's dyno before the head and cam install.

Photos, dyno graphs and cam specs to follow this weekend.

Tim help me out!
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Old 11-06-2013, 09:59 PM   #41
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So what was the pr length after all bud?
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Old 11-06-2013, 10:00 PM   #42
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It ended up being 7.70"
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455HP/422TQ.
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