4.8 turbo
Thread Starter
Launching!
Joined: May 2012
Posts: 249
Likes: 0
From: North Dakota
4.8 turbo So I built a turbo motor for my truck and now I have 2 spare 4.8's one with ported 706 heads and a 235-249 duration .573-.558 lift 109lsa cam and I have a spare On3 76mm so I thought I would toss it in another project. Im thinking a cam change is in order but wondering if the current one would stand a chance at working.
Thread Starter
Launching!
Joined: May 2012
Posts: 249
Likes: 0
From: North Dakota
It didnt start to make power till 4800+. I ran an even bigger cam before this one but it had less duration. Took it to 8200 on stock rod bolts for a split second then set the limiter to 7400 to keep it alive and bounced off it every time it was out. lol
**** Denmah, you know all about that right bro?! LOL That's what I plan to do to my 4.8 too! F it right? Don't call them junkyard motors for nothing! I tossed some rod bolts in mine just for kicks, gonna see how far/hard I can push that bastard before it fireballs.
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Verdad Gallardo Thread Starter
Launching!
Joined: May 2012
Posts: 249
Likes: 0
From: North Dakota
Yeah I got two very low mileage 4.8's for less than I payed for my valve springs and lifters in my solid roller methonal powered sbc. So I figured lets see what these ls motors will do. I spent over $6000 to keep the sbc alive at that rpm.
Thread Starter
Launching!
Joined: May 2012
Posts: 249
Likes: 0
From: North Dakota
The motor was in my air bagged 68 c10 backed by a muncie 4 speed and 4:30 gears. You could start from dead stop in 3rd gear dump the clutch at 6000 and 2 seconds later you were into the limiter and the tires were frying until you let off. I wish I would have took some videos. Ill just say their was lots of tire smoke around town.. Should be better with the new motor and turbo setup.
