View Full Version : Just wonderin about horsepower
02-27-2006, 12:01 AM
i am jus wondering if anyone knows how much horsepower my 75 jimmy has. it was a 5.7L 350 but is now bored out to 383. just wondering about a estimate in horsepower. i was told just shy of 300 and i was wondering if thats true or not
02-27-2006, 12:03 AM
depends on heads compression cam etc..most 383 strokers are 325-350 hp no?
02-27-2006, 12:07 AM
oh, they could very well be, i dont have a clue about it thats why i was asking, and i dont know about hp
02-27-2006, 12:07 AM
i meant i dont know about compression*
02-27-2006, 12:08 AM
my friends dad has one with 425 but its built has lots of money into it
02-27-2006, 12:17 AM
Bored out? don't you mmean stroked out to 383 it depends on like dean said compresion heads intake cam
the 383 I built had 10 to 1 compression dart heads ported and polished roller rockers Holley multi port fuel injection ( Holley strip dominator intake 8 port injectors and a 1000 cfm throttle plate ) and an extreme energy cam that was 470 478 lift 268 272 dur with 110 degree lobe separation.
with the research I did prior to building mine I estimate that it was in the range of 400 425 hp and 425 to 450 ft pds of torque it woud rev to 6500 rpm and was a hell of a lot of fun in a little cj5
02-27-2006, 08:22 AM
[iagree] what they said    [cheers]
02-27-2006, 04:29 PM
who cares? its only good for webwheeling. All that really matters is how ya use it
02-27-2006, 07:10 PM
I think Mikie uses every bit of horespower that engines got in it !!!!!!!!!!!!!!
And the grin that comes with it sure is worth something
Sorry Aaron ,, the 4 banger can be built with gearing for crawlin etc -but nothin like havin the power to hammer down :)
02-27-2006, 07:11 PM
thats why i'm gonna win the challenge yo.....hammer down and bounce up and over everything while he " picks" a line...
02-27-2006, 07:15 PM
You might have 2x the horsepower, but you've also got 2x the wieght.
Either way its gonna be a good show
02-27-2006, 07:16 PM
you have 175 hp? wow gonna be quite the 22 yo....
02-27-2006, 07:22 PM
horsepower smorsepower.....who gives a crap as long as your first...
02-27-2006, 07:24 PM
ok, maybe not 1/2, but close enough.
If i throw the same motor in with a cam I'll be at about 120hp 150tq, but with the cam it'll be all low end where it counts.
But I'm also seriously thinking of swapping in a 4cyl out of a 99 tacoma which is 150hp 175tq, so i'd be close to 1/2 if i went that route...
02-27-2006, 07:31 PM
hes got to be more then twicwe your weight tho
Just to add more fuel to the fire:)
02-27-2006, 07:34 PM
man this is gonna be fun Aaron...
02-27-2006, 07:41 PM
02-27-2006, 08:04 PM
This is kinda nice having Aaron and Dean over here in Jeep talk !
I know they only have Toys and Chevies but at least they can come over to jeep talk and enjoy real trucks !
02-27-2006, 08:24 PM
your just glad that finaly someone is posting about something other than broken jeeps in here[f]
02-27-2006, 08:27 PM
02-27-2006, 09:04 PM
So is there a BROKEN TOY PAGE?Just for you ERN???[f]
02-27-2006, 09:05 PM
Thats what the toy section is for :D
02-27-2006, 09:06 PM
02-27-2006, 09:09 PM
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