Awesome job! Looks great. Are you going to have it dyno'd? Did you sell the ZZ4?
I've been thinking about a 5.3 or even 6.0 LS for my '91 Suburban but I'm probably going to just build one of the TBI 350s I have into a vortec 383. I'm always up for a challenge but maybe not THAT much of a challenge
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: firstname.lastname@example.org, 112 LSA, Eagle Steel Crank.
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames
3.45 Dana 44.
I finally have a break from the snow to hang out for awhile.
Dave, I will have it on the dyno this spring. We ran out of time this past fall to get the final tuning done. I did sell the old crate engine. Got $1700 for it. It now lives in a '68 Biscayne wagon. Doing a LS swap into a "Square body" GM truck is much simpler. I would do it if I were you.
Mark, we set the rev limiter to 6500 rpm's. It's amazing how quick it revs. This actually created a problem with shifting the Tremec TKO 5 spd. TKO500's don't like high rpm's. Knowing what I know now, I would have used a T56 or Tremec 6060 6 speed instead. I had to yank the TKO out and have carbon fiber syncro's and brass shift fork pads installed to help with the high rpm shifts.
TKO's are a hodgepodge of truck and car parts I guess. Joel would know more about these than me.
Cindy, now's the time to do it with the body off. It is a big undertaking but not impossible. Time, patience and research is the key. It will cost you around $6k to do. The other alternative to modernizing your car is to go with a throttle body injection unit from FAST, Edelbrock, MSD, or one of the other companies. These bolt right in place of the carburetor and most have a self learning computer so they tune themselves. It about half the cost. Right around $3k to do. Much more reliable and responsive than a carb.
GEN III 5.7L "LS6" Engine swap TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes Borgeson Steering Box Born 8/1981
Hi! Can you share some information on your LS Swap? I am curious as to what fittings are needed to link the fuel system pressure and return lines to the LS engine fuel system. I would also like to know if you used the existing fuel pump relay for the in tank fuel pump. I know I'll need to replace the cfi pump to a larger, high pressure pump. also, which headers/exhaust manifolds are you using? any info would be greatly appreciated!
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