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Did they check retainer to guide clearance? Is the spring coil binding? Do the pistons have valve reliefs? Are the pushrods the right length? Have the heads been cut any, if so how much? What head gaskets were used, were they thinner if so how much? If I recall correctly the heads have...

.040 = 351 and .060 = 355 CI

Chris, Funny you should ask as I just today put it back in and it's up and running. The other guys that want one are still getting $$$$ together, parts aren't cheap as everyone knows. But anyway I'm going to the track track this Sunday, so I'll have some better results hopefully, as long as...

Oh, OK non factory CD. That answers it. So at that point the 340's and the 360's can be counted as the same piston. Then they aren't 340's or 360's, there custom pistons. They just share the same bore and CD.

Your correct in the bore size being the same as the 340 but there's a difference in the CD on the 2 different pistons. Even the low compression 340 pistons would need about .055 off the top of the piston to make it 0 deck in the 360. So how are they going to work in the stroker engine? Unless...

When I get a block in for boring, I first clean it and then use a dial bore guage to check the taper and the difference in bore roundness. Then I make a decision on what the finish bore would end up at. I too like to have the pistons in hand before I bore a block, as they differ in size...

You should be fine. Now get it running already.

Louis, .020 should be fine without cutting the intake or the intake side of the heads, but I consider this to be the max without cutting the intake side of the heads or the manifold and still make it bolt up and work. At .030 I cut .030 off the intake side of the heads and this makes the heads...

OK, Here is the stock magnum head and a 1008 Fel-Pro gasket. The issue looks to be the same with both the steel gasket that Louis has and the other Fel-Pro gasket he has. The 1008 is for a std LA engine and looks like the 519 gasket he has already except for the blue signature where the head and...

I do and I'll try to get a picture today, but I have alot going on right at the moment.

Louis, From what I see the Fel Pro looks to have the same problem but on the oppsite water port. If thats the Fel Pro with the blue sealing ring.

Also too keep in mind that most copper gaskets need to have the block and heads O ringed to seal properly. One side with a steel wire and the other a reciever groove.

Mike, I don't mind you quoting me, I look at it as a shamelss plug. Thanks

Thanks to all for the good feed back, I know it makes Mad Dart feel good too.

Ram, The guide plates came with the heads, and Mad Dart will have to check to see if they need to be modified when he puts the heads on the engine. We won't know this till he gets the heads on Thursday, 9/24. I would say up to 550-600 open pressure and or 220 closed pressure.

I opened the ports as can be seen in the pics. about 1-2"'s.

Yes they flowed better than expected, and the problem is that if the exh. side flows more than the intake side then the overlap of the cam at low lifts will pull the intake charge out the exh, creating a lean condition. Now if it was going on a NOS engine then I would fully port the exh. side as...

After doing the setting of the installed heights there was .800 between the retainer and the top of the seal so he could literally run a .700 lift cam. The installed height ended up at 1.780 with a coil bind of 1.050. The springs are set at 130 @ 1.78 and 340 open at 1.125.

Here are some pictures of the finished product.

Thats why I use a 4" bore for all small block heads as this is what most engines are give or take .060. Now for my big block engines I use a 4.500 bore fixture as the engines around here are this size, so the flows may be a bit higher for a say a 4.375 engine bore. But like was already...

2360, Yes they are .200 long valves so they will have a P# of F6206+.200 and F6147+.200. You'll have to use the SBC rocker studs also to accomadate the longer valves, and the rocker stud pads will have to be machined .100 more so the studs won't be too tall. This kind of middles the road on...

The ones that they tested must have been the 2.02 versions, because the 1.92 versions didn't come close to that flow on my bench. But then as in the past Indy's bench seems a bit high and IMO is a sales tool. In the past there advertised flows were about 20-30 cfm's high.

Mad Dart wanted me to post the finished pictures, so I'll do it on Wed, or Thur. after the final work is done.

66, But they are lift limited as cast so keep in mind that some machining will need to be done and this cost will have to be added in. In as cast form they will accept about .500 lift with stock magnum valves, so cam choice is critical as is spring selection for the retainer style. To me...

Ram, These heads are a lot better than the truck magnums on both ports.

Here are some pictures of the work as ruffed in and flowed.

OK Guys, Here we go, this is what I've come up with. Because of the lack of the right length valves in 5/16 or 8mm the heads will have to use .200 long 11/32 valves and .050 raised locks. The reason is the installed will now be 1.780 and with the guides cut down you will now have enough...

fishy, Keep in mind that the 11/32 stem valves from Ferrea are 5/16 behind the head of the valve, this is only about .006 different from the 8mm stems. So it may not hurt it as much as you think, but I agree that it may hurt it some but I'll wait and see what happends when I get the guides...

.700 lifts can be a reality but the thing here is at what cost is this going to happen. The thing with running a taller valve is the retainer to rocker clearence, or the rocker to VC clearence at full lift. Taller studs like what I'm going to be using will help this out some, so it will be like...

Louis, I believe that in time they will hurt the sale of Eddy's, but I don't know if I would use the EQ heads as a replacement head or not, as they'er a good bit larger than the stock castings. I guess if there isn't any other heads available at the time then I would have to use them for that...