Forum: Early V8 (1932-53)
12-30-2014, 10:40 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
The 276 is a very nice engine and properly tuned can be a great performer, with excellent fuel economy. So don't sell them short, I have one in my truck.
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Forum: Early V8 (1932-53)
06-26-2014, 08:31 AM
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Replies: 218
Views: 120,192
Re: Boring a flathead
Yes, but I never understand why they did it. I do understand why they offset the crank and wondered why modern engines don't do that. Are off set pistons still popular? When I built my Hemi,...
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Forum: Early V8 (1932-53)
06-24-2014, 07:29 PM
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Replies: 218
Views: 120,192
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Forum: Early V8 (1932-53)
06-24-2014, 01:35 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
Atta Boy John. I can just picture you with a coupla Beagles. Did the Alagator ever come back?
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Forum: Early V8 (1932-53)
06-24-2014, 07:01 AM
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Replies: 218
Views: 120,192
Re: Boring a flathead
The definition of EX-Spurt is: An EX, is like an Ex wife or Ex president. A spurt is a drip under pressure. So an expert is just a drop.
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Forum: Early V8 (1932-53)
06-23-2014, 05:30 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
There are several kinds of pistons, basically street and racing. And among these there several types available. For street they're the 4 ring thermal strut pistons like the stock ones and...
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Forum: Early V8 (1932-53)
06-23-2014, 08:17 AM
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Replies: 218
Views: 120,192
Re: Boring a flathead
The quickest way to check stroke of a piston is to compair the wrist pin location to another piston ofknown stroke. The pin is closer to the top of the piston with the longer stroke, by 1/8"
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Forum: Early V8 (1932-53)
02-17-2012, 05:24 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
No problem boring the 41 block to 3 3/16, after you remove the sleeves that's only another .040" This will however creat a small lip that will prevent the installation of rings I use a special cutter...
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Forum: Early V8 (1932-53)
08-12-2010, 09:24 PM
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Replies: 218
Views: 120,192
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Forum: Early V8 (1932-53)
08-12-2010, 07:36 PM
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Replies: 218
Views: 120,192
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Forum: Early V8 (1932-53)
08-12-2010, 09:06 AM
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Replies: 218
Views: 120,192
Re: Boring a flathead
Thanks Virgil and tom for your pictures. I've never seen this much detail of the castings. In my book I moved the end exhaust to eliminate the exit bend, and was disappointed in the results. Some...
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Forum: Early V8 (1932-53)
08-11-2010, 01:44 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
I did some Flow work on the modified port in my book and saw very little improvement over just shaping it similar to Mike Bishops work. I square up the side of the port nearest to the block eng...
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Forum: Early V8 (1932-53)
08-10-2010, 06:52 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
Yes, the late 49 to early 51 blocks usually come with hardened seats in the exhaust and a 1.72 chevy valve can be used in the intake. Keep the 1.5 in the exhause. This is about max for a street...
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Forum: Early V8 (1932-53)
08-10-2010, 11:44 AM
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Replies: 218
Views: 120,192
Re: Boring a flathead
I like the late blocks because they don't have any hardened valve seats and you can do wonders with the valve pockets.
Yes Winfield was a genius, I think he was responsible for the nOVu 183 ci and...
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Forum: Early V8 (1932-53)
08-09-2010, 04:28 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
The 270 Schnider cam is a nice cam, sounds good and pulls well over 2599. Displacement and compression make up for any low RPM losses. I like a hot cam in a street machine,if your looking for mileage...
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Forum: Early V8 (1932-53)
08-07-2010, 10:20 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
Now remove an 1/8" from the bottom of the valve too. Most of the Hump at the bottom is still there. This is a good street port& valve It will pass more than eniugh F/A to run a 276 with a long cam to...
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Forum: Early V8 (1932-53)
08-07-2010, 07:04 PM
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Replies: 218
Views: 120,192
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Forum: Early V8 (1932-53)
08-07-2010, 07:02 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
I built a flow bench for my book, years later I had the opportunity to use a professional unit. This became addictive. I spent days, weeks themn months trying to find the holy grail of flow. I ran...
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Forum: Early V8 (1932-53)
08-04-2010, 09:39 PM
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Replies: 218
Views: 120,192
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Forum: Early V8 (1932-53)
08-03-2010, 09:45 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
I really miss Don, we had several discussions about porting and head design. He put me on the kitty litter and I tried that in several tests. Interesting results.
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Forum: Early V8 (1932-53)
08-03-2010, 02:29 PM
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Replies: 218
Views: 120,192
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Forum: Early V8 (1932-53)
08-02-2010, 10:17 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
I talked to Ken back in o2 and he was convinced that the ports couldn't feed a bigger engine. All his efforts were in making the engine berate better. Not bad for a 26? cube engine. I found that...
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Forum: Early V8 (1932-53)
08-01-2010, 01:08 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
No I don't think that running a pop-up piston would be of any advantage at the engine operating RPM. Also the higher CR may cause fuel and ignition problems. Build a tight combustion chamber, play...
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Forum: Early V8 (1932-53)
07-29-2010, 10:13 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
Vergils Photo shows the spark plug location right over the valve. I think the plug locatin should be in the transfer area, where a power tip plug could be used. Edmonds and Flatattack heads have...
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Forum: Early V8 (1932-53)
07-29-2010, 02:23 PM
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Replies: 218
Views: 120,192
Re: Boring a flathead
One modification you can make to a cylinder head is to increase the angle of the transfer area into the cylinder. I cut this back with a ball end mill. However it lowers compression and I don't...
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