What Trick Flow Head?

[m79ded]

@m79ded Would you share your compression and cam specs?
I’d like to know more. Sounds great.

Sure It has 10.75 compression to be pump friendly, cam I used is in the picture I will enclose: it's cut @ 112 for better street manners since my main goal is street car and I use 1.6 rockers as well a a RPM intake. The heads really do make a wonderful difference. My buddy Tom @ TK Race just cleaned up the heads, port matched the intake and cut the divider down a bit and it was ready. He is doing up a 471 B-engine with the same heads and a bit bigger solid cam. Last one he did made over 650 on both sides and very streetable. Also he did a 465 RB engine and that thing with 452 heads and a Voodoo 60303 cam did 542HP 578 TQ with 16" of vacuum, that engine was so easy to do because the customer had a crank that got messed up bad on a rod journal so he offset groung it to 3.91 and used 6.70 Big Chevy rods and the same 440 2.067 comp height pistons, It was really cheap and goes very well. There are many great combinations you can put together, just keep it to your intended usage and you will be happy. If I would do it all over and not skimp out on $750 I would do the 471. Hope it helps our Mopar buddies.

 

[wagonman]

With Porters advice went with the Comp XS282S, 520-540 244-252 @ 50 110.

 

[rumblefish360]

Awesome! Thanks!

I’d like to do a 471/6 pack myself.

 

[m79ded]

With Porters advice went with the Comp XS282S, 520-540 244-252 @ 50 110.

Great let us know how it does.

 

[rumblefish360]

Great let us know how it does.

I just have to note that your engine made some really good power with a small cam. Wow!

And your right for sure, heads make a big difference and the cam should always be in the driving range on your street car. Especially since the duration controls a lot of where the rpm range will be on the engine.

 

[Sweet5ltr]

I just have to note that your engine made some really good power with a small cam. Wow!

And your right for sure, heads make a big difference and the cam should always be in the driving range on your street car. Especially since the duration controls a lot of where the rpm range will be on the engine.

It helps when the OOTB heads flow 310-cfm @ .500" lift as well

Doesn't take much camshaft to make big power with over 440-cubes and that sort of cylinder head.

Just don't wonder off and glance too much at the Chevrolet offerings from Trick Flow, will make you hate Trick Flow for not producing a 380-400 CFM head for BBM .

 

[m79ded]

I just have to note that your engine made some really good power with a small cam. Wow!

And your right for sure, heads make a big difference and the cam should always be in the driving range on your street car. Especially since the duration controls a lot of where the rpm range will be on the engine.

Thank you, The work on the Intake helped, cleaning up the ribs on the heads also did and for sure the lighter Bob weight. The pistons are Ross and the are very light as well as the crank lightened to fit in 400 and scat rods. Altogether a bit of everything helps. Like I said the 470 is even better it's lighter assembly and with 6.70 rod has such a sweet rod ratio the thing buzzes like a small block and shreds the pavement at same time. Practically a perfect street engine, easy on parts and cooling system as well as not bad sideloads on block. Go with 470 if you have the opportunity you won't regret it. Oh I forgot to add the cam isn't much smaller than that solid Dwayne Porter suggested, Here's why the one I put in is a Hydraulic which is 8* smaller than the solid. Well the solid loses about 5 to 6* from the lash, I also used 1.6 rockers which gains about 2 degreesand bringing the lift up to 580/600 on the lift taking advantage of the much better breathing head, (we know the TFS breaths well about 600 lift and 112 LSA gives it a wide separation for a broad torque curve as you saw.

 

[rumblefish360]

It helps when the OOTB heads flow 310-cfm @ .500" lift as well

Doesn't take much camshaft to make big power with over 440-cubes and that sort of cylinder head.

Just don't wonder off and glance too much at the Chevrolet offerings from Trick Flow, will make you hate Trick Flow for not producing a 380-400 CFM head for BBM .

Your absolutely correct! Being a small block guys for decades..... this kind of power is achieved very differently... or I should say, expensively with a lot more work.

Oh, to late on looking at the Chevy heads.
Nothing new there. Chrysler Wedge guys are always behind the 8 ball.

 

[wagonman]

Quench question. After doing some mock up after getting everything from the machine shop the pistons are @ zero deck like I wanted. I clayed the chambers with a already compressed Fel-Pro 8519 gasket and am getting 0.045 approx between the reverse dome piston and head. So with a Cometic 0.040 it puts compression @ 10.5 and with a 0.050 its 10.25. I woul like to lower it to 10.25 I have read that 0.035 is optimal. Will it be Ok, better or not? Want to run our 92 swill.

 

[m79ded]

Quench question. After doing some mock up after getting everything from the machine shop the pistons are @ zero deck like I wanted. I clayed the chambers with a already compressed Fel-Pro 8519 gasket and am getting 0.045 approx between the reverse dome piston and head. So with a Cometic 0.040 it puts compression @ 10.5 and with a 0.050 its 10.25. I woul like to lower it to 10.25 I have read that 0.035 is optimal. Will it be Ok, better or not? Want to run our 92 swill.

Go with 10.50 and the tighter quench, you will be less prone to detonation than 10.25 with looser quench. Put a 112 lsa cam it bleeds off pressure better also.

 

[wagonman]

Go with 10.50 and the tighter quench, you will be less prone to detonation than 10.25 with looser quench. Put a 112 lsa cam it bleeds off pressure better also.

Thanks that what I am thinking.

 

[justcruisin]

Presume you are using the FT springs that come with the TF240's. 1.5 or 1.6? Do you plan to shim the springs for the xs282s or run them as delivered.

 

[wagonman]

Presume you are using the FT springs that come with the TF240's. 1.5 or 1.6? Do you plan to shim the springs for the xs282s or run them as delivered.

As delivered. 1.5 rockers. Just got the Cometic 0.040 gaskets heads are on, push rods measured. Getting close to Dyno time, maybe after the new year.

 

[justcruisin]

I am planing on up grading to the 240's, so if you don't mind - did you cc the heads, are they 78cc's as advertised. Did you check the springs for seat pressure? These heads will put me at 10.75:1 at 78cc's. Keen to see how your dyno numbers come out, thanks.

 

[wyrmrider]

looks good tighter quench no over .050 tighter is better

 

[wagonman]

I am planing on up grading to the 240's, so if you don't mind - did you cc the heads, are they 78cc's as advertised. Did you check the springs for seat pressure? These heads will put me at 10.75:1 at 78cc's. Keen to see how your dyno numbers come out, thanks.

No on cc the heads and no on seat pressure test. I have no reason to question T.F. quality, just looking at these jewels compared to the 440 source units is like night and day.

 

[wyrmrider]

you still need to check everything

 

[wagonman]

Since the heads are on I wont be CCing them. Pulled some springs and had them checked, all came in at TF specs @ 120 and 390. By the way these are PAC springs. Got my push rods from Smith Bros and am setting the rest of the top end up. So far so good if all goes well should have this puppy on the Dyno soon. Man the price of push rods sure went up compared to the last set I got from Smith. Raw material prices I guess. Oh well it is what it is.

 

[biomedtechguy]

By the way these are PAC springs.

Knew that, but I don't really " know" PAC

Man the price of push rods sure went up compared to the last set I got from Smith.

The only pushrods I've gotten were from Mancini, so I don't know cost of a higher level product. How much did Smith charge before, and now?

 

[not so famous bob]

Since the heads are on I wont be CCing them. Pulled some springs and had them checked, all came in at TF specs @ 120 and 390. By the way these are PAC springs. Got my push rods from Smith Bros and am setting the rest of the top end up. So far so good if all goes well should have this puppy on the Dyno soon. Man the price of push rods sure went up compared to the last set I got from Smith. Raw material prices I guess. Oh well it is what it is.