p51 heads vs tfs heads

p51 vs tfs heads any one better or worse

pretty sure im gonna order an ultra block so i also could use that 18 bolt head from tfs


anyone got a better choice

gonna do a big bore and have 3k to spennd on heads

The TFS A460 style heads have the most HP upside .

Next stetup from the A460 heads would be C460's but to do a good set it costs more than $3k

dfree383 wrote:Next stetup from the A460 heads would be C460's but to do a good set it costs more than $3k

If you do the C's right, prepare to spend $8K...I've got the receipts to prove it. But, they are some nice pieces and I've got no complaints. That's just what it takes to do it.

so tfs a 460 heads are the way to go if im gonna spend 3k on heads ..will these work on a 605 eliminater motor using an ultra block?

and can they support 900-1000hp out of the box or no?

thanks any info would help

built all kinds of sbf , this is my first bbf so dont know the ins and outs yet

thank you

Out of the 'box'...it's an air pump...why would anyone do a 604" deal with out of the box heads ? A 572"
engine with good heads will make more power . I know you did not say it but , I'm so sick of all this "there is no replacement for displacement" shit . There is no replacement for a GOOD PACKAGE !

but Lem you "have " to have a 4.5 stroke.........the bigger motor always makes more power......not.


He said "package"................huh huh, hu huh huh huh...........

basicaly i got a 92 mustang backhalved gonna run a glide ,29x10.50w tires and onna get a ultra block to build up rolling chassis is done
got a complete 25.5 sportsman cage chromoly ect... well was thinkin of doin a big cubes motor

like i said ive done a bunch of sbf 331,408 ect... but want a naturally aspirated 13.1 compression bbf

would like to run low 9s high 8s

figured 598 600ish tfs or p51 heads id beable to do it ....didnt want to use nitrous ...


whats the best combo for me then to do ...youre right about having the right package or combo that works , my old motor was 331 supercharged but had shity heads at first i swiched for some afrs and night and day .....was like sucking thru a straw ..

so your input is appreciated
if theres a combo that u reccomend let me know gonna use an ultra block tho

TFS a head with a little work............or a lot.............would be a bad mofo, best bang for the buck....on a motor that big.....as already stated.


Hope the suspension is rockin', or that tire will never stand a chance.

"figured 598 600ish tfs or p51 heads"
Or P51s...they are a great head but not what you need in this application . 15/1 not 13/1 comp ratio + butt kicking cyl. heads .

I think the point Lem and others are trying to make is that in a 600" combo the heads you want to run are going to be a restriction given your goals. Odds are the car is going to be 3000#+ unless you are going to put it on a diet. If you are set on running the TFS streets or the P-51's, you might be better served with a 4.300" stroke combo. The two heads you mention wouldn't run out of steam on a smaller inch combo as quickly as it would on a 598"-605" deal. If you want to do a 4.500" stroke combo I'd go with some well worked A heads or the C's like I mentioned in an earlier post. The problem is the $3K budget isn't going to happen unless you find some good used reasonably priced heads. The choice is yours, but you might want to reconsider your budget goals or your performance expectations. To run low 9's on all engine and no juice at the weight you are at is going to cost money. The good news is if you do it right the first time it will be a long life and relatively low maintenance combo.

$2,100 block ....$3,800-$4,000 heads .

Lem Evans wrote:$3,800-$4,000 heads .

Is that the going rate on a full boogie set of A's? or P-51's?

schmitty wrote:

Lem Evans wrote:$3,800-$4,000 heads .

Is that the going rate on a full boogie set of A's? or P-51's?

It ain't the A's...unless the price has really gone down!

Nevs wrote:

schmitty wrote:

Lem Evans wrote:$3,800-$4,000 heads .

Is that the going rate on a full boogie set of A's? or P-51's?

It ain't the A's...unless the price has really gone down!

I was thinking the same, but one never knows unless one asks. I was thinking the A's were about $3K in the box. Ti valves about another $1k and port work $?

About $2,700 for a set of TFS 2.350" intake valve heads..from there a guy could spend what ever . My point is/was $3,800-$4,000 will make a lot of stuff happen...Ti valves are more $s yet .

Lem Evans wrote:About $2,700 for a set of TFS 2.350" intake valve heads..from there a guy could spend what ever . My point is/was $3,800-$4,000 will make a lot of stuff happen...Ti valves are more $s yet .

I think we are on the same page, Lem. But, a $3K budget isn't going to cut it. That was my point. You know it better than I, but I've been there and done that as well.

Nevs wrote:

Lem Evans wrote:About $2,700 for a set of TFS 2.350" intake valve heads..from there a guy could spend what ever . My point is/was $3,800-$4,000 will make a lot of stuff happen...Ti valves are more $s yet .

I think we are on the same page, Lem. But, a $3K budget isn't going to cut it. That was my point. You know it better than I, but I've been there and done that as well.

10-4 .

and what's the cash drain on a set of full boogie P51's?

I am thinking that the new style A's are some of the most underestimated cylinder heads out there in the bang for the buck department. Lots of stuff one can do and plenty of room for growth if one wants to utilize it, and they do seem to work well on most motor sizes as long as the bore is sufficient.

windsor wrote:and what's the cash drain on a set of full boogie P51's?

P51s with the big springs and Ti retainers like the A460s come with are gonna be about $2,500 before being modified.

I see several people wanting to build monster engines for peanuts and they can't afford to maintain them. On an engine like this the Maintainance is a bunch more than a smaller engine, but they seem to think it is nothing but run the valves and change spark plugs... what some don't understand is with Bigger you have to Change the trans, converter, drive line, and Make sure the Rearend is best it can be cuz this kind of engine can break it in a heart beat... and handling this power is substancial over say 600 hp.. it's not the extra hp that breaks stuff it is the massive amount of TORQUE they build that breaks things....



Randy

my car consist of a full 25.5 sportsman cage chromoly
9inch rear end 35 spline mark williams axles and spool
strange rear disk brakes and front
aje tubular front with racecraft front spindles
koni coilovers front and rear
car is back half with a 4 link
29/10.5w/15
jw glide
chute and rear end has wheelie bar brackets (never had to buy them but maybe now lol)

want low 9s if i cant do it i still i have my 331 dart block i can buy a bigger blower

just wanted bbf power
but im new to the bbf shit ...so when u guys come across like i should know i realy dont know , and thats why im on this site for info
im a cnc programmer/setupmachnist make a good living i can spend more than 3k on heads in theory just didnt think i needed 5k dollar heads
but im learning ....when u go big block everything is more money,im relizing ......my car is good to 7.50s the way the chassis is ....low 9s is for me high 8s tops

i plan on getting an ultra block ,maybe a a460 block would do ....idk want to buy a good block it all starts there , didnt want to use nitrous and go thru a bottle every frickin pass ,

what does your car weigh out at?


Randy

never weighed it without engine

it weighed 2900lbs with me and a dart 331 with vortech blower , full glass and power windows lol

interior is basic door panels ,1 racing seat
stock dash gutted

used chromoly on cage ,it was more money but figuared it save a little

the dart block is heavy for sbf but not sure weight vs bbf