93 lt1 heads and cam
If you're only looking to outrun that Mustang though, the Hot Cam and LE1 heads would do that all day long.
Last edited by badfbodyz; Apr 19, 2015 at 08:01 AM.
I went with Lloyd Elliot, his customer service is phenomenal and I'm very happy with my cam setup.
Some folks can't quite comprehend the difference between a 383+ci pure race build that just needs a big hole to move air so they start with AFR227s and open them up more and a 6500rpm stock cube more street than strip build.
Ported stock heads have gone 9s NA on solid roller strikers and 10s NA even in a hydraulic stock cube motor or two and even done that in a 3800lbs Impala.
By the time you buy AFR and port them you have twice the money spent, if looking to push the envelope maybe that is appropriate. For most looking for a fun street car we won't ever wring the best ET out of there is little point.
We talked about the FULLY PORTED 21* TFS heads with upgraded 2.055/1.60 valves, dbl springs, 7/16 studs, guide plates, etc for $2300.
$300 custom cam
227/235 .565/.579 110 LSA cam for stock bottom end 350 -6300 RPM shift RPM
231/243 .571/.587 110 LSA cam for "built" 355 with good pistons, rods, balance, etc, that can handle 6700-6800 RPM *BETTER SET UP*
243/251 .597/603 110 LSA cam for "built" 383 with -5 cc flat top pistons and 6800 RPM shift RPM *BEST SET UP*
$200 FULLY port stock LT1 intake.
$100 UPS shipping with insurance going back to you.
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$2900 total
You also need these parts
LS1 air lid
58 MM TB
1 7/8 KOOKS LT headers
3" True Dual kit
3" in/out Bullet mufflers with 4" body
dumps at rear end
Lunati Voodo 1.6 roller rockers
$100-140 pushrods
computer tuning
Honestly with only 80k on the car I would just go with the stock bottom end setup for now until you learn more about these cars. Install the heads and cam yourself and enjoy your own built motor. A proper H/C build will surprise you anyway - you may end up with more then enough power for you. A 355 is nice if its an old tired motor, but with only 80k it is still fresh and can easily go another 80k if you take care of it.
A 383 is nice, but to do it right is a LOT more expensive...I know it doesn't look like its that much more on paper, but you also have to figure that now you need better injectors, new fuel pump, better springs, better pushrods, more head work, etc to make it all worth it. The easiest route(not saying its the best or cheapest, just easiest for someone new to these cars) would be to purchase the heads, cam, and valvetrain from LE and then buy a 383 shortblock from somewhere like Golen. Bolt it all together yourself (realize you forgot a million things and go over budget nickel and dimeing yourself on stupid things you didn't factor in like gaskets, sensors, fluids, etc), transfer the accessories and stuff from your current motor, get it tuned, and enjoy it.
The last thing you want to do is end up going overboard with a project you aren't ready for and have the car sit for years or end up parting it out. Ask me how I know
. The Best V8 Stories One Small Block at Time
Option 1: A LE2 stock bottom end LT1 will put down 410-420rwhp through an m6
Option 2: 21 degree ported trickflow 355 will put down about 430-450rwhp through an m6
Option 3: 21 degree ported trickflow 383 will put down about 450-470rwhp through an m6
Now you need to look at dollars per HP and figure out what makes sense to YOU for YOUR goals. Is it a track car, a daily driver, a weekend toy, are you willing to do some weight reduction? You can pull 3-400lbs out of these cars easy by removing the rear seats, spare tire and jack, HVAC, air pump, crash supports, airbags, carpet, stereo, and get it down to about 3000lbs. A 3000lb car with 420+ rwhp will dominate about anything on the street. Do you plan to spray in the future? If so you need forged pistons from option 2 or 3. What is your budget?
REMEMBER: No matter how much you sink into the car, it will NOT add value to the car. There are guys on here with $25,000 into their cars, running 10s and look like show cars, and they cant sell them for $9000. People would rather buy a stock car than a modded one, if you ever want to get out of it, you will pretty much have to part it out to get any sort of your money back.
Parts you need regardless are long tubes (pacesetters or some of the new cheaper stainless ones and an ORY are $400-500, Kooks are $1200, not worth it IMO, get the cheaper ones). The cheaper ones you might have to fight a little to fit in SOME cases, but the Kooks are expensive as hell. The shortys you have now are not going to cut it. Rest of the exhaust $400. 30lb injectors for Option 1 or 2 or 36-42s for option 3 are $300, Walbro 255 with the hotwire kit $150, ls1 lid or K&N intake is $50-150, dyno tune is $400, clutch is $300 for a competition clutches stage 2.5 or 3 which is fine for 420rwhp, up to $700 for something stronger for the 383, eurathane motor mounts and trans mount to replace your sagging 22 year old rubber ones so your headers dont hit the K member and give false knock $50, non self aligning 7/16 stud full roller rockers like Crane Gold, Comp Pro Mags (or Ultra Pro Mags), Scorpions, Crowers, etc for $300-400, 7/16 studs for $75, pushrods $100, guide plates $75, gaskets and fluids $150. Rear tubular lower control arms $100-200, torque arm $300-400, torque arm relocation mount $250, tires $400. Dont forget a good shifter, I like my B&M ripper, but the MGW and Pro 5.0 are good choices as well, so another $200. I would do all of these things first before you drop any money on the heads/cam, bottom end, just to get your feet wet in tinkering with these cars, and just with the above you can be in the mid to low 12s, I ran 12.3 at 111 with the above and the above weight reduction.
The stock 7.5" 10 bolt is said to be made of glass, GM value engineered it and pulled it from a 190hp S10 and slapped it behind these and they break with stock power and sticky tires. You can make if survive by babying it, but why baby a car that you just dropped $5000+ into? A 9" or 12 bolt or S60 is $1500-2500. And why have all that power if you can't put it to the ground? Also need a new driveshaft $300. Don't forget a 6 point cage if you are faster than 11.50 or you'll get thrown out of the track $500.
Option 1 is by far the cheapest. The LE2 kit is $1750. This plus the above costs and your pretty solid and 420rwhp in a 3300lb car will run fast, mid to low 11s.
Option 2 starts adding the machine shop costs $1000 plus new rods $400 and new pistons $700, and balancing $225. Plus the added $1000 of the trickflows, plus now you really need that 9", ask yourself if 20-30 rwhp is worth $3500. Also LE2s or AI200s would be fine here to save $1000. Will run low 11s, possibly kiss high 10s if you are a great driver.
Option 3 is the most expensive, it has the costs of option 2 but adds a $750 crank. If you've already sunk another $3500 into it, might as well do option 3 over option 2. Now you NEED the 9", and a better clutch and a cage. Can be in the 10s if you are a good driver.
So its up to you. I vote option 1, you only have 80k on that shortblock, it will live for a while.
Option 4 is refresh your shortblock with ARP rod bolts and new bearings and it will live forever, for an extra $400 over option 1, and you can spin it to 7000.
I would start reading other peoples threads and spend a serious amount of time exploring all of your resources on this site, ltxtech.com, and others and find someones build you like and copy it.
Other things you might not have considered are wearable items for routine maintenance that may need replaced. Your car is 22 years old and has 80k miles, your front ball joints, tie rod ends, control arm bushings, opti, waterpump, alternator, ICM, shocks, etc may be on their way out.
Or you could just buy RamAir95TA's car and convert it to a 6 speed, and sell your car and be into this whole thing for WAYYYYYYYYYYYY less money. This is who I mentioned who has $25,000 into it and cant sell it.
https://ls1tech.com/forums/vehicle-c...k-reduced.html
Last edited by bufmatmuslepants; May 7, 2015 at 06:15 AM.
If you don't mind not building it yourself, buying RamAirs car will save you a cool $10k+ and you can keep your as a DD or sell it to offset some of the cost.
I honestly have no clue how his car isn't sold yet. I have more then his asking price in just my motor...and his is complete from suspension to trans to motor, and already proven and dialed in.







