Hopped up Hudson Hornet build.
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hudson nut
- Posts: 443
- Joined: Wed Mar 25, 2015 4:50 am
- Location: Riverside Calif.
Hopped up Hudson Hornet build.
I’m sidetracked again… building an engine for a club member. This one is getting the 50’s NASCAR upgrades. 2” intake valves, 1.6875 exhaust valves, and a big block relief.
25 Hudson speedster project
29 Hudson coupe
36 Hudson 4dr sedan
36 Hudson LWB 4dr sedan
40 Hudson 2dr sedan
41 Hudson coupe
54 Hudson coupe
29 Hudson coupe
36 Hudson 4dr sedan
36 Hudson LWB 4dr sedan
40 Hudson 2dr sedan
41 Hudson coupe
54 Hudson coupe
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hudson nut
- Posts: 443
- Joined: Wed Mar 25, 2015 4:50 am
- Location: Riverside Calif.
Re: Hopped up Hudson Hornet build.
Here is the block, set up on my mill, and photos comparing the factory relief with the new relief. The new one is .100” deeper than factory.
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25 Hudson speedster project
29 Hudson coupe
36 Hudson 4dr sedan
36 Hudson LWB 4dr sedan
40 Hudson 2dr sedan
41 Hudson coupe
54 Hudson coupe
29 Hudson coupe
36 Hudson 4dr sedan
36 Hudson LWB 4dr sedan
40 Hudson 2dr sedan
41 Hudson coupe
54 Hudson coupe
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Gojeep
- Old Hand
- Posts: 7393
- Joined: Mon Jan 07, 2008 1:24 pm
- Location: Eastern Suburbs of Melbourne
- Contact:
Re: Hopped up Hudson Hornet build.
Forced induction? Just wondering as the compression would have dropped as well I take it? Or do the pistons have to deep first ring land and come up higher? I know little about hopping up flat heads and was wondering how you over came the greater chamber area?
Marcus
To try where there is little hope, is to risk failure.
Not to try at all, is to guarantee it!
____| \______\
|/¯\ |¯ |----O||||O
()_)-o-)¯¯()_)-o-)_)
To try where there is little hope, is to risk failure.
Not to try at all, is to guarantee it!
____| \______\
|/¯\ |¯ |----O||||O
()_)-o-)¯¯()_)-o-)_)
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hudson nut
- Posts: 443
- Joined: Wed Mar 25, 2015 4:50 am
- Location: Riverside Calif.
Re: Hopped up Hudson Hornet build.
I use a head with a smaller combustion chamber. Stock compression was 7.5:1. after block modifications, with the other head, compression is 8.75:1. The relief is 1/16" above the top piston ring, valves unshrouded. This, coupled with a good camshaft, really makes it breathe good.
Dany
Dany
25 Hudson speedster project
29 Hudson coupe
36 Hudson 4dr sedan
36 Hudson LWB 4dr sedan
40 Hudson 2dr sedan
41 Hudson coupe
54 Hudson coupe
29 Hudson coupe
36 Hudson 4dr sedan
36 Hudson LWB 4dr sedan
40 Hudson 2dr sedan
41 Hudson coupe
54 Hudson coupe
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Gojeep
- Old Hand
- Posts: 7393
- Joined: Mon Jan 07, 2008 1:24 pm
- Location: Eastern Suburbs of Melbourne
- Contact:
Re: Hopped up Hudson Hornet build.
Thanks for the insight. 
Marcus
To try where there is little hope, is to risk failure.
Not to try at all, is to guarantee it!
____| \______\
|/¯\ |¯ |----O||||O
()_)-o-)¯¯()_)-o-)_)
To try where there is little hope, is to risk failure.
Not to try at all, is to guarantee it!
____| \______\
|/¯\ |¯ |----O||||O
()_)-o-)¯¯()_)-o-)_)
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zuffen
- Old Hand
- Posts: 2109
- Joined: Fri Jan 28, 2011 7:45 pm
- Location: Sydney
Re: Hopped up Hudson Hornet build.
Funny, My first thought was "what about the top ring?"
Amazing the way guys figure out how to get more out old engines.
Amazing the way guys figure out how to get more out old engines.
Never argue with an idiot, they will drag you down to their level and beat you with experience.