Top end questions/ideas needed
Thread Starter
Instructor
Joined: Aug 2000
Posts: 118
Likes: 0
From: Union Ky
Top end questions/ideas needed
Retiring the L82 out of my '74. Picked up another 350 the other day and would like get it around the 300hp range if possible before I drop it in. The 350 I got ran strong with no smoke and I don't want to get into the bottom end at this point, so just looking for top end ideas.
What I got is:
3970010 block
I268 date
V0927TKT stamp
Not sure on CR, maybe in the 8 range for this engine
'78 Truck block which I believe is a LS9 165hp
Will be running Hooker sidepipes and would like to keep my Q-jet & air cleaner so it all fits as stock under the hood. So any ideas to get this thing up to about the 300hp flywheel level
Thanks...Jack
What I got is:
3970010 block
I268 date
V0927TKT stamp
Not sure on CR, maybe in the 8 range for this engine
'78 Truck block which I believe is a LS9 165hp
Will be running Hooker sidepipes and would like to keep my Q-jet & air cleaner so it all fits as stock under the hood. So any ideas to get this thing up to about the 300hp flywheel level
Thanks...Jack
Last edited by jmh63; Aug 11, 2006 at 12:09 PM.
Advanced
Joined: Oct 2005
Posts: 53
Likes: 0
From: Overland Park Kansas
I would think 300fwhp would be very, very easily done with just about heads, cam and valvetrain upgrade.
edit: Id recommend looking at the packages that are made to work together, ie. edlebrock
Edelbrock Power Package
http://www.jegs.com/webapp/wcs/store...tegoryId=64856
Holley SysteMax II Kit
http://www.jegs.com/webapp/wcs/store...tegoryId=15937
edit: Id recommend looking at the packages that are made to work together, ie. edlebrock
Edelbrock Power Package
http://www.jegs.com/webapp/wcs/store...tegoryId=64856
Holley SysteMax II Kit
http://www.jegs.com/webapp/wcs/store...tegoryId=15937
Last edited by 72_el_camino; Aug 11, 2006 at 12:11 PM.
Melting Slicks
Joined: Sep 2002
Posts: 2,783
Likes: 2
From: Engineers do it better.
I have stock bottom end on my L-48 motor. With 76cc Performer heads (9.2-9.5 CR????), Magnum 270H cam, Performer Intake, Hooker headers, crappy Q-jet, TH400, 3.08 gears, mech fan, alternator, ps, water pump, it makes 250 rwhp.
According to 20-35% loss, that's 313-384 fwhp. Your 300 target is very easy with stock bottom end.
Good luck.
According to 20-35% loss, that's 313-384 fwhp. Your 300 target is very easy with stock bottom end.
Good luck.
Pro
Joined: Sep 2004
Posts: 690
Likes: 0
From: Madison WI
Originally Posted by desi
I have stock bottom end on my L-48 motor. With 76cc Performer heads (9.2-9.5 CR????), Magnum 270H cam, Performer Intake, Hooker headers, crappy Q-jet, TH400, 3.08 gears, mech fan, alternator, ps, water pump, it makes 250 rwhp.
According to 20-35% loss, that's 313-384 fwhp. Your 300 target is very easy with stock bottom end.
Good luck.
According to 20-35% loss, that's 313-384 fwhp. Your 300 target is very easy with stock bottom end.
Good luck.
Anyway, 300 at the crank should be dead easy. One of the top-end kits that you can buy would get you there - I've heard good things about Trick Flow's kits
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