edelbrck vs indy

[challenger71]

HI every body looking to upgrade my engine 440 to aluminum cylinder heads need high performance heads need advice what is better one the eddys or edelbrock or indys ez-1
Thanks in advance

 

[moparleo]

The heads are part of a total package. What exactly are you building ? Block, crank, rods, bore, stroke, cam, intake, exhaust, gearing, trans type, ? Stock engine with just a head change?
Top end packages are available from both Indy Cylinder head and Edelbrock. These come with heads, intake, carb, cam kit

 

[moper]

Need lots more info...

 

[challenger71]

i got new speed proPistons, Forged, Flat, 4.360 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves , new edelbrock rpm performance dual plane intake manifold rpm 1800-6500 with ultra double pumpers 850 cfm daul hedman headers lunati voodoo hydraulic roller cam HYDRAULIC ROLLER: 3.55-4.10 gear, 2000 stall in 330, 2200+ in 383, 9:1 compression, high performance street rpm range 1800-5800 new converter stall 2200-2800 high performance oil pump mechanical feul pump hly 8 pci . 8 3/4 rearend 3.55 gear ratio with 727 trans auto rebuilt with B&m valve body stock block year 78 stock cranck rods piston bore 40
i hope this will help all parts are new not installed.....Thnaks

 

[moparleo]

You will need to kick the CR up with the aluminum heads to 10.5-10.75 to 1.

 

[Chryco Psycho]

the Only advantage to Eddy heads is price the Indys are better , we did a costly Eddy head swap from ported 452 heads & gained a Whopping 3 RWHP , the valves hit the pistons so the pistons had to be flycut to clear the slightly different valve positions , we ported the eddy heads , the rockers did not center over the valve tips properly , all for 3 hp !!

 

[moparleo]

A perfect example of why you build a package. Parts compatability is number1.

 

[moper]

Both companies sell poorly executed but decent heads. Indy's valve work sucks, as does Edelbrock's. Of the two, the RPMs typically need less to make right. If you buy Indy - buy them from a goo distributor and have them assemble them for you. If you buy either package, you should have a performance shop go over the as-delivered valve job so add in the cost in the budget. Also - you need to determine which pistons you have - there are two flat top forged. One is lower compression because of a lower compression height and they sit down in the block. Also make sure you ge tthe right head bolt package respectively, and use the Fel Pro Performance 1009 gaskets with either of them.