trick flow heads with speed pro pistons

[mikemustang289]

I'm looking at some trick flow heads, supposedly with stock pistons they can handle a pretty decent cam size, something like [email protected].

I do not have stock pistons, I am running speedpro's that are cut for 2.02 valves but are not ment for the altered angle of the trick flows.

Since I have pistons cut for 2.02 valve can I sill get away with running more cam? I'm thinking something in the area of 226-230. .550 lift.

Or do aftermarket pistons make no difference since these heads have an altered valve angle?

 

[Rick 91GT]

The aftermarket inline piston makes little to no difference with the Rotated valve.....

 

[mikemustang289]

Ok thanks, I will get the performer rpm's instead.

 

[Rick 91GT]

I'd still pick the TFS over the E'brocks....if you want an inline head look at the AFR's.

 

[mikemustang289]

I have looked at afr's. I'm not looking to buy new heads otherwise I would dish out the extra cash for them. Even in used form they're going for $1100 or more.

Used e-brock are relatively cheap and based on the numerous dyno testing shootouts on the various heads, AFR's typically make roughly 20+ peak hp and torque over the E-brocks. That's not enough for me spend the extra money. In addition to that, AFR's D shaped exhaust port would require me to buy a new set of headers, otherwise sacrifice flow and power.

I'm not looking for the absolute most HP, 20 or so difference isn't that big of a deal for me, These will be going on a 306.

A friend of mine runs the 1.90 E-brock RPM's, mild cam (~224/~232) 9:1 comp, puts out 420 at the flywheel.

I'm just looking for low-mid 12's in a 3k pound car, I don't think the difference between AFR's and the E-brocks is gonna make or brake my goal, considering there are guys here in the 12's with stock E7's. I was considering the Trick flows from what I have read on them, but I don't want to deal with the headache of p/v clearance issues. I already went through that hassle on my last build and ended up having to retard the already tame cam to get enough clearance.