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Modified Tech Discussion Forum for Tech related discussion for Modified XJ's and MJ's. |
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#1
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big valve head
Has any body used the head with bigger valves and did you gain any more power and about how much do you think it was and are you happy with the head ? Odessa Cylinder Head sells one with a 2.02 intake valve and 1.62 exhaust valve , I would all so clean up the ports . thank you for any info you can give me .
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#2
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Re: big valve head
I run one of Russ's LS1 valve heads but it's fully ported and on a stroker. The intake is ported and bored for a 62mm throttle body. What else on the motor do have you done?
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#3
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Re: big valve head
stock head flows pretty good. if you haven't done intake/exhaust, I'd start there.
if I were to do a big valve head, I'd definitely move to a bigger lift/duration cam to take advantage of those valves. so make sure you have springs on the head to handle such a cam if that's of interest. |
#4
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Re: big valve head
Yeah going big valve isn't going to matter without a port and polish, and a cam. That becomes a whole thing.
__________________
I'm not a complete idiot - there are parts missing. |
#5
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Re: big valve head
I did want to clean up the ports and run a set of roller rockers , I'm not looking for a lot .
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#6
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Re: big valve head
For 50yrs I've told my customers "you can't get it in, until you get it out".
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#7
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Re: big valve head
I did forget to say that the head on my jeep now is cracked so I will be buying a replacement head , I just don't know witch one yet .
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#8
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Re: big valve head
Quote:
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#9
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Re: big valve head
"You've got to get the exhaust charge out before you can get intake gasses in"
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#10
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Re: big valve head
Quote:
should he run bigger exhaust valves than intake? longer exhaust duration? turbocharge it? |
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