The tighter quench distance might very well make up for the higher scr and give you no problems at all. Suspension and drivetrain will be just as important, if not moreso than the engine, so consider that too. Go to Jegs and check out the new head they have for small block fords. The stock AFR's and the Canfields make more power then the stock Trick Flow heads. 8-1 cr with its 64cc chamber. Fear not, as the Twisted Wedge valve orientation actually improved P-V clearance. Double-Hump Heads from Trick Flow Give Modern Performance And Vintage Looks. Premium certified materials and components, along with the finest CNC tooling, are used to ensure uncompromising quality and durability, dimensional accuracy, and balanced flow from port-to-port. Makes sense since there is no crossover.
I also read that the afr 165s are only good to about. Trick flow vs afr heads for small. On the same note trick flow had problems with their first release as well which has since been fixed. While there are aftermarket replacement heads for the SBC that offer improved performance, none have the familiar humps that were machined on the ends of the original heads. Everyone please give a big thanks to tpi421vette (Jim) owner/operator of Gearhedz Race Shop in Salt Lake City, UT. Trust me, if i could go balls out and build my full motor right know i would, but i think its smarter to do top end first rather then building my 383 and slapping stock unported heads on that.
The first post has been edited with Trick Flow tech data, I've also included the data here. Recommended max valve lift is. Dont let the small port cross section fool you. Amounts shown in italicized text are for items listed in currency other than Canadian dollars and are approximate conversions to Canadian dollars based upon Bloomberg's conversion rates. I found this interesting, I think the main differance is the large cc chambers in the CNC versions 74cc stock 88cc CNC. The heads have been lightly ported and decked by Lloyd Elliot. Which heads trick flow or afr. Take a look at the trick flow canted valve design and this is how you can run a 2. To illustrate the 185 heads (flowing 300 cfm) could support even more power, we installed them on a 347 Stroker equipped with a Comp XFI236HR cam. The TF heads are still behind on power compared to the other two.
The relatively small cross-section intake runner dimensions should promote low-rpm torque and off-idle throttle response for more enjoyable street performance with a small-block engine. Thats not a problem, but I will say, a test like this, you should be lobbying the very people who would benefit from this, which is potentially AFR or Trickflow or maybe the cylinder head porter...... The TFS streets are a very very good cylinder head. I would go the Vortecs personally for the price, otherwise look into the Brodix, AFR, or Edelbrock heads if you gat the $$$ to spend for more power. It backed up what I say. Trick flow vs afr heads 2. The higher HP engines use the AFR's for a reason. The final numbers are: Greatest RWHP achieved: 389. While the heads certainly play a critical part of the power output of a Ford (or any) combination, they must obviously be matched to things like displacement, cam timing, and the induction system.
"So, we decided to actually design a head that looked more like the stock head than what we had done, " adds Roth. The TFS streets minimum intake port cross sections are quite similar to the first gen aluminum cj's which are not nearly as large as the iron cjs are. Trick flow vs afr heads for water. I so far have heard no detonation and no pistons bumping heads and I've turned it to 7000 rpms a couple of times trying to get the governor sorted out. Location: New Orleans. Nothing like bolting on 119 extra horsepower! 588 lift cam on bolth in. Intake center line 108.
I have a bare 350 block sittling in my garage. Included in the kit were a Street Heat upper and lower intake, Stage-2 hydraulic roller cam (. I posted that information in my first post: The TFS heads are probably 18 months old or so. You cannot delete your posts. Other than that, they can take more compression on pump gas, which means more power. Power is in the heads). 6-1 cr with a 58 cc head. 5" out, 70mm TB, 76mm maf, T5-4. You cannot attach files to posts. I don't know what my 421 has cost me as of yet because I haven't added up the bills (better that way), but I am positive it's more then most would be willing to spend. I wouldn't be happy with any more than a. 40 over flatop stock style pistons. Anybody interested in some AFR's let me know.
040 head gasket on the TFS heads, that puts me at ~11. Something like 385 to 370 in one test I read. 1995 Forged 385 ZF6 227/234 1. 6 FIC30# MSD BBK SS SLP Bullets X-Pipe DynoMax. After a valve adjustment (1/2-turn) and installation of the slick cast-aluminum valve covers, we installed the upper and lower Track Heat intake sections along with a 75mm Accufab throttle body. 512 custom ground cam (do i need a bigger one). Thanks for asking about it.
I don't have any real surplus parts, but I do have some exhaust manifold gaskets you can have for shipping. I should have dyno numbers and track times by Sunday. If you put the heads next to a stock set you can see the exh ports are much higher on the TFs. 440" bore Venolia flat tops 11:1 comp ratio. Nothing has been done to the heads, they will be bolted on as they come from AFR. I have thought about this as well.
Since the TFS port work was more than you expected, does that changes the out-the-door price tag on them? Maybe this will help Josh. You might not need an aftermarket casting depending on your goals (and more importantly, budget). Believe the newer Vortec trucks ran EGR off the exhaust manifold. 540 before you get into PV issues. The new high velocity, race-inspired runners have been optimized for today's popular bore and stroke combinations.