Engine SwapEverything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.
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I would like to know what combo everyone have put together or brainstorming. Here is what I have on TAP:
Here is my Combo that hopefully will be complete before the summer or early fall. I Have to go to Russia for 45 days, so I want have time to work on the engine:
Engine: 400 SBC ID# 330817/14y139664/ T0508CSU
(4.125 bore X 3.750 stroke) after .040 bore (4.165 bore x 3.75 stroke =408)
Exhaust: Hooker Super Comp headers 1 5/8 Headers part # 2460-1 ceramic coated; Custom Y-Pipe, Hooker Super Competition high flow cat-back exhaust system, Intermediate pipe: 3 in.
* Tail pipe diameter: 2 1/2 in.
* Dual tail pipes out the rear under the bumper
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Block 71 Pontiac 400 + .060 zero decked =412
+.030 Ross 455 pistons with 1.540 compression height
BBC Eagle rods- 6.800"
Nodular crank cut to 2.199 on rod journal 3.750 stroke
6x4 heads milled to 81cc. 9.5:1 compression
Holley 800 dp sittin on 2" open spacer
Holley street dominator intake
HO Racing cam HC03D
checking 542/558 with Harland Sharp 1.65 rollers
(which really check about 1.72)
114 lobe sep
87 Camaro gutted about 2800 lbs?
456 gears in narrowed chevy 12 bolt
16x32 slicks
th 350 tranny
had too many beers for this post
'74 350 4 Bolt .060" over
Forged Pistons flat-top
Forged Rods 5.7"
Cast Crank stock stroke
XE280 flat hydro cam(probably too big)
Vortec 170 CC intake runners 1.90 1.50 valves out of the box stock 64 cc chambers
Edelbrock Performer RPM intake
Holley 750 dp
12" 2500 stall converter w/ lockup (not efficient unlocked)
700r4 with BW internals
3.27 rear with auburn posi
Car weight w/driver and fuel 3420 lbs.
My engine was made out of leftovers and used parts. My best run to date is a 14.2 at 98 mph. I blame most of that on the torque converter and the heads need to be ported and matched. The pistons and rods are heavy you can get away with hypereutetic pistons, and cast rods, but if you have the money and don't mind the weight, then forged is the way to go. The cast crank is good up to 400-500 hp. Billet is the best because you get a better finished piece, but forged is real good too. The XE280 is entirely too big and is probably killing my valve springs. The 750 is a little big, but not bad at all. The performer RPM has raised intake ports, so it's a decent match to the vortecs, but definately need to be matched. The heads have the old style intake holes drilled into them, but you have to seal the threads, becasue they go into the water jackets. The whole combo was thrown off by going too small on the heads. They were a money decision, not a performance decision. If you run an auto then the Torque Converter is another huge decision. The 12" I'm running was another cost decision. A 9.5" is much more efficient and multiplies the torque more. I'd probably run a late model with 2bolt with splayed mains for better weight too.
71 010 block, 4 bolt main from a truck.
Below Zero decked
bored .030 over,
align bored
TRW forged flattops, 4.5cc v/r's with a .002 posative deck heigth
Polished X rods
Eagle 4130EQ forged steel 3.48 " crank.
Ballanced.
062 vortec heads
Bowl work, vavle job, and decked. 61cc total of 10.7 compression with the felpro headgasket.
Comp XE 274 cam.
Performer rpm (vortec) intake
Crane race gold, narrow body self aligning rockers.
standard volume oil pump.
780 4150 model vac sec holley.
700R4 nutted up.
9.5" 3300 stall act converter
373 gears, auburn pro posi.
SLP 1 3/4" headers, cutout, and flowmaster "catback" or... cutoutback in this case.
Carter street pump, 6psi 120gph
spohn Sfc's, adjsutable torque arm, and boxed lca/panhard rod.
4" cowl hood.
march underdrive pullies... although.. the only accesories are the waterpump, and the alternator.
S10 manual steering box.
removed hvac system.
that's bout all you'll ever wanna know bout my ugly ole Z28:hail:
Last edited by Pony Killer; 01-24-2003 at 10:53 AM.
Well, I *was* planning on saving for the Rock 'n Roll Engineering 500hp Pontiac 350, but that was before I found a local speed shop that would build something similar using a SBC for half the price
Car Craft reviewed the RRE engine, if anyone's interested. Here's the link:
- PA Racing front coil over suspension with chromoly front tubular crossmember
- Suspension Techniques variable rate rear springs
- Kenny Brown adjustable competition rear control arms, panhard rod, subframe connectors
- Spohn adjustable competition torque arm
- Drag radials
- All the other junk that nickel and dimes you to death
Carb - Assuming this is a strip-primary car, or at least you want to build it towards optimizing that use, consider a DP rather than VS. The Avenger is an over-priced marketing special IMHO, whereas you can build a 4150 from a 3310 for a lot less money. But, DP is going to give you better power/performance characteristics (yeah, I know I don't have one), so seriously consider one of them instead. A 750 DP should do well (which is what I should have done).
Exhaust - Again assuming this is for racing, consider more exhaust. If you don't have a lot of speed bumps to navigate, LT's and at least 2-1/2" dual back would let this larger inch Mouse exhale. 1-5/8" primaries will only support 350's (383 in a stretch) that rev above 5000 RPMs.
This car would be a Street/weekend cruser w/5 track night per year. I already have the Exhaust taken care of. As far as the Carb I will look into a bigger carb thenthe 670 Avenger, Might get a 770 Avenger or 3310 Vac Sec..
Here is my custom exhaust 2 1/2 from header to the 3" Y-pipe: http://www.thirdgen.org/techbb2/show...hreadid=155711 (My Custom Y-Pipe (Pictures))
My Daily Driver:
73' 350 .030 over
trw forged pistons(around 8.6 to 1 compression)
2.02/1.60 iron heads
1.6 roller rockers
comp cams baseline turbo cam(268/260,218/212@.05,483/473 lift)
arp main studs,arp head studs,arp waveloc ror bolts
torker intake
holley 750 DP
62-1 Q-trim turbocharger (12 to 14 lbs of boost)
powerstroke intercooler
msd 6a, msd btm
HEI Distributor
built 700r4
3.23 posi rear
2x3 in. subframe conectors
control arm relocation brackets
adj. torque arm
drag radials
8 point roll cage
extra pair of pants in the passenger seat
that about takes care of the basics of the setup. The details would take about 10 pages. It took a lot more than i thought, but oh well it was well worth it.
