Thread: ProComp ??

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Yeah 34 40, now we're complaining because people are actually making speed parts for us! Now if they would just get the cost down to what Chevy guys pay for your stuff.

Dave, Summit has some good prices on Trick Flow and I understand it is because they own the company or part of it. Only thing that concerns me is how they will work with my pistons..........are there clearance issues? One other thing that is in the back of my mind is maybe aluminum heads might have a sealing problem if a motor runs warm. Living in Florida this car always ran on the edge, in the 190+ range. Part of it was that the radiator is chopped 8.5 inches from the stock 32 size, so cooling is marginal. Maybe steel heads like World Products would work better under those conditions?

Don

Ok, I've spent way too much time making the decision of what heads to go with, so I finally jumped down off of that fence..........just placed my order with Summit.

I decided to go with Edelbrock E-Street heads which are their latest. They call these an entry level head but for the kind of driving I will be doing they seem to fit the bill. First of all, they are only $ 921.00 a pair, and the port volume is a little less than some of the others which should give me good throttle response at lower speeds. They also work with my aluminum 2 x 4 intake and Sanderson headers. Pretty much they are a direct bolt on and also have the guide plates and screw in studs I wanted. I also like the fact they are USA made by Edelbrock......all of their stuff seems very good IMO. They should be here on Wednesday.

Once I get them on I can start deciding what roller rockers I am going to use.

Don

Hey Don, thanks for posting the E-Street heads. I didn't know about them yet. What size is your motor? Did you order the 1.90" or 2.02" valves?

Richard, I went with the 331 stroker from Scat. Heads I ordered have 202 valves, should clear my pistons according to Scat and Summit. Here is a little info from Edelbrock on these heads:

http://www.edelbrock.com/automotive_...e-street.shtml

All in all it should be a pretty crisp engine and the 4.30 gears should let the X303 cam get into it's operating range. I'm pretty anxious to see how the old girl pulls when I get it running.

Don

Should be a little sweetheart. I've read where those 331's make way more sense than a 347. What's the static c.r.? I'll run a DynoSim on it later if you'd like.

Scat tells me with 60 cc heads about 10.5. Thanks for doing that.

Yeah, I've heard more good about 331's than 347's.........especially in the oil consumption and longevity areas. But even in the 331 they supply you with an additional support ring that goes under the bottom oil control ring to brace the area that is cut out for the pin being moved up.

Don

Don, you have a PM....

Yep, saw it Richard. I'm running the X303 cam, not the E303.

Don

Originally Posted by Itoldyouso

Yeah 34 40, now we're complaining because people are actually making speed parts for us! Now if they would just get the cost down to what Chevy guys pay for your stuff.

Dave, Summit has some good prices on Trick Flow and I understand it is because they own the company or part of it. Only thing that concerns me is how they will work with my pistons..........are there clearance issues? One other thing that is in the back of my mind is maybe aluminum heads might have a sealing problem if a motor runs warm. Living in Florida this car always ran on the edge, in the 190+ range. Part of it was that the radiator is chopped 8.5 inches from the stock 32 size, so cooling is marginal. Maybe steel heads like World Products would work better under those conditions?

Don

I always use the Trick Flow matching pistons with the Trick Flow heads..... Never had a problem cooling with aluminum heads, sometimes on the early spring and late fall racing, takes a piece of cardboard in front of the radiator to get the heads to temp....This is drag racing, I sure don't see any problems on the street....

Originally Posted by Itoldyouso

Richard, I went with the 331 stroker from Scat. Heads I ordered have 202 valves, should clear my pistons according to Scat and Summit. Here is a little info from Edelbrock on these heads:

http://www.edelbrock.com/automotive_...e-street.shtml

All in all it should be a pretty crisp engine and the 4.30 gears should let the X303 cam get into it's operating range. I'm pretty anxious to see how the old girl pulls when I get it running.

Don

With a light car and the rest of the goodies in the engine, I think the E Heads are a great choice!!!!!