The iron motor will bolt right up in a C5. The LS1/6 blocks have 6 mount holes on the driverside and 5 mount holes on the passenger side. It still just uses the front 4 holes like a iron block. The other holes are used for grounds. I've done a couple of these swaps. I have a C5Z in the shop now that just got a 408.
Just the ls1 in the vette no power runs fine no smoke or anything just not enough like an ls1 should be. Also got the engine in the truck brealy finished and never really use it. Use my F-250 more for pulling and stuff. Just want the vette to be my dd with good amount of power. Thanks so by the sounds of it it should fit then.
Wanderer Racing
2002 Sierra Denali: iron 5.7,cam,243 heads port,headers , true duals, AWD, 42injectors, Nelson Tune, snow performance stage 3,100 Shot of nos, 3200 circle d
Guess I just dont understand why anyone would want the extra weight of the iron block when you have an alum LS1 already in place. Its just as easy to mod as the 5.3 was. Do some of the same mods and you will get much better gains IMO.
T-RAV99 GMC | 5.3 | Skinny White Guy Tuned
+1Originally Posted by bangbangskeetskeet
By the time you pull both motors and swap everything over and install them back into the vehicles you will have spent a month of Sundays with time gone by with neither vehicle running, and not to mention the small fortune in fluids and gaskets that will need to be re-placed, don't forget to factor in the cost of re-tuning both vehicles for proper drive ability. Just mod the motor you have till it blows it up or breaks lol.... or you can install cheap HP on it. Serious doses of N2o till it croaks, then swap motors JMO
You would only pack on another 30 lbs overall I think as well from swapping an aluminum block to iron block...either way it's really no big deal...Just saying
Last edited by MrHorsepowerLSx; 12-11-2012 at 06:40 PM.
2001 ECSB Z-71: 7.0L LS7, Kook's LT's, True Duals, RPM Tune, F.A.S.T. Intake/TB, YANK TT3000, 4:10's, G80, AWD Swap, 160-Stat.....
Slowest in South Jersey..........SOLD :-(
2012 GMC Sierra Z71 CC: 6 Speed, 3:73's, G80, Back up DD...........SOLD
2000 RCSB Shitbox.......370LSx/Built 60e/4.56's,EATON Posi, CAI,3" SLP Exhaust, DD.......Build Thread http://www.ls1truck.com/forums/my-ga...ker-punch.html
yeah, check corvetteforum. a bunch of iron block there
00 FRC - just top end, exhaust, and a hot-air intake
99 Sierra - 5.3 / 5spd
↓ click the pic for the build ↓
Why don't you find out why the vette is lacking power?If it doesn't smoke maybe it just has a spark or fuel problem.Possible clogged injectors or bad coils.
Exactly...something is causing the vette to lose power and it could be a problem even when you swap motors. Why not get to the bottom of your problem first that way you don't spend all that time and effort swapping engines only to still have a problem. Also an iron block is 100lbs heavier and that's a big difference in a vette. My neighbor has a procharged LQ9 in his vette and it's heavy in the nose...
2005 Silverado SS AWD
AEM CAI, ARH LTs, HD-2 shift kit with vette servo, Circle D 278mm 3200 stall Madtunesracing.com street tune (MTR now has a Dynojet 248 chassis dyno)
13.82 @ 94.92 w/1.83 60'
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