Here we go again. This time Edelbrock heads

[pittsburghracer]

@SS Lancer had given me permission to share his info and pictures of his project. Hopefully he will chime in and explain things better. He’s running a class that requires a certain part number Edelbrock head so he had a set of bare heads drop shipped from Summit in Dallas. He also shipped me his LD340 also required for his class build. Heads are of course getting ported and he’s going with 2.055 Ferrea intake valves and 1.60 Ferrea exhaust valves. I shipped off Reds head’s yesterday afternoon (thanks buddy) so I wanted to get a jump on this job so I drilled both heads for tubes and tubed one head. Got a little exhaust side work done then it was 8Pm quitting time for supper. I hit them hard for almost 4 hours today then quit for late lunch and a 40 minute Power Nap. One head has dimensions within .015 for now except for the short side and it’s only rough shaped. I have to unload my duster tomorrow and a few other jobs but I hope to have this head done this week. Here’s some pictures of my progress and my second entry I’ll list a few issues again with Edelbrock heads.

 

[pittsburghracer]

Ok now I checked the set of Edelbrock heads I’m doing for myself and they aren’t like this but the spring pockets are huge. Like 1.790 huge. The chamber have a very rough sand casting finish as do the ports but I’m porting those so they will be cleaned up. I’m spoiled by the valve guide fit of the bare Speedmaster heads which except for one .003 oversized guide fit. These are tight and I mean tight. Ok moving on the chambers if you look in the pictures have to be enlarged, a lot. I’m probably going to sit down and figure out the extra time required to make these heads right and start charging more for Edelbrock heads.

 

[fishmens67]

you do very nice work John.

 

[pittsburghracer]

A few pictures of his LD340 intake. Lots of port matching and blending as typical on most heads. I haven’t flow tested one of these for awhile so this will be interesting. It may be awhile but numbers will be updated.

 

[pittsburghracer]

you do very nice work John.

Im Just glad I’m enjoying it again buddy. Some days I have to push myself but it’s good to keep moving. Thanks for the nice words.

 

[NCmtnDWELLER]

@SS Lancer had given me permission to share his info and pictures of his project. Hopefully he will chime in and explain things better. He’s running a class that requires a certain part number Edelbrock head so he had a set of bare heads drop shipped from Summit in Dallas. He also shipped me his LD340 also required for his class build. Heads are of course getting ported and he’s going with 2.055 Ferrea intake valves and 1.60 Ferrea exhaust valves. I shipped off Reds head’s yesterday afternoon (thanks buddy) so I wanted to get a jump on this job so I drilled both heads for tubes and tubed one head. Got a little exhaust side work done then it was 8Pm quitting time for supper. I hit them hard for almost 4 hours today then quit for late lunch and a 40 minute Power Nap. One head has dimensions within .015 for now except for the short side and it’s only rough shaped. I have to unload my duster tomorrow and a few other jobs but I hope to have this head done this week. Here’s some pictures of my progress and my second entry I’ll list a few issues again with Edelbrock heads.

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Looking FABULOUS

 

[PRH]

Just a FYI......
Unassembled Eddy heads come with unfinished guides.

Also, even the assembled heads will usually have guides that will end up being tighter than I prefer when using non-Eddy valves.

The Eddy valve stem diameter is usually a nominal .3405”, which is .0005” smaller than a typical Ferrea or REV valve, which are typically .3410.
The normal fare for assembled Eddy heads ootb is the guides come with barely .0010” clearance on the intakes, and .0015” on the exhaust.
They’re often not super straight either, which exasperates the tight feel when non-Eddy valves are used.

I always end up honing the guides in Eddy heads.

Guides a little on the small side are easier to make right than guides on the loose side.