View Poll Results: Which top end?
better cam and home port the 799 I have already bought
1
25.00%
keep my cam and buy ported TFS 220 heads
3
75.00%
Voters: 4. You may not vote on this poll
TFS 220 (cleaned up) vs home port 799
01-04-2011, 03:40 PM
#1
TFS 220 (cleaned up) vs home port 799 I have a pair of 799 heads I am planning to mildly port/mill and put on since I got them for a good deal.
But I was just offered a pair of TFS220 heads lightly cleaned up by what I would call a professional since he does work for a Houston area shop. Said they flowed 330cfm @650 lift.
Obviously the TFS heads are going to be superior...but it is my understanding it would be strongly recommended I use aftermarket roller rockers on those heads...which would absolutely put them out of my price range.
My current cam won't be a good match for either set of heads really, so I was considering a swap to something different in the low 230s with newer lobes (likely EPS) which I also wouldn't be able to afford with the other heads.
So basically it would look something like:
better cam/799 (sell stock heads and current cam, more money in my pocket) vs. my cam/TFS heads (sell stock heads and 799)
But I was just offered a pair of TFS220 heads lightly cleaned up by what I would call a professional since he does work for a Houston area shop. Said they flowed 330cfm @650 lift.
Obviously the TFS heads are going to be superior...but it is my understanding it would be strongly recommended I use aftermarket roller rockers on those heads...which would absolutely put them out of my price range.
My current cam won't be a good match for either set of heads really, so I was considering a swap to something different in the low 230s with newer lobes (likely EPS) which I also wouldn't be able to afford with the other heads.
So basically it would look something like:
better cam/799 (sell stock heads and current cam, more money in my pocket) vs. my cam/TFS heads (sell stock heads and 799)
01-04-2011, 03:55 PM
#2
I bet those TFS would pick up 20+ pretty easy.
I had a set of CNC'ed 5.3's and picked up 19/19 on back 2 back dyno runs when I switched to TFS 220'S on my old 346... I am sure they are worth more than that on my new setup.....
I had a set of CNC'ed 5.3's and picked up 19/19 on back 2 back dyno runs when I switched to TFS 220'S on my old 346... I am sure they are worth more than that on my new setup.....
Last edited by SOMbitch; 01-04-2011 at 08:33 PM.
01-04-2011, 04:45 PM
#4
According to Brian Tooley of Total Engine Airflow you can swap out the bronze valve guides with powdered metal valve guides and run OEM rockers with the 220s. I don't know the cost, but it might provide another opiton to consider.
https://ls1tech.com/forums/14109610-post32.html
https://ls1tech.com/forums/14109610-post32.html
01-04-2011, 08:14 PM
#6
I have a pair of 799 heads I am planning to mildly port/mill and put on since I got them for a good deal.
But I was just offered a pair of TFS220 heads lightly cleaned up by what I would call a professional since he does work for a Houston area shop. Said they flowed 330cfm @650 lift.
Obviously the TFS heads are going to be superior...but it is my understanding it would be strongly recommended I use aftermarket roller rockers on those heads...which would absolutely put them out of my price range.
My current cam won't be a good match for either set of heads really, so I was considering a swap to something different in the low 230s with newer lobes (likely EPS) which I also wouldn't be able to afford with the other heads.
So basically it would look something like:
better cam/799 (sell stock heads and current cam, more money in my pocket) vs. my cam/TFS heads (sell stock heads and 799)
But I was just offered a pair of TFS220 heads lightly cleaned up by what I would call a professional since he does work for a Houston area shop. Said they flowed 330cfm @650 lift.
Obviously the TFS heads are going to be superior...but it is my understanding it would be strongly recommended I use aftermarket roller rockers on those heads...which would absolutely put them out of my price range.
My current cam won't be a good match for either set of heads really, so I was considering a swap to something different in the low 230s with newer lobes (likely EPS) which I also wouldn't be able to afford with the other heads.
So basically it would look something like:
better cam/799 (sell stock heads and current cam, more money in my pocket) vs. my cam/TFS heads (sell stock heads and 799)
Poolfanatic, with some MTI 2E LS6 back in the day and a X1 made 445rwhp and it was tuned safely with spray.
Bshell with a TR230 and TFS 215 made 460+RWHP..
