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It's 383 time!!!!!
It's finally done!! Time to drag you guys through the journey to get here with lots of pictures. It's taken 9 months for the whole process. Without further adieu, let’s go!
Here's what I started with: 1969 L48 block, completely original, bores BARELY had a ridge in them. It still had the original cam and nylon timing gear. I bought the complete motor for $300 and parted the rest of it out. http://i85.photobucket.com/albums/k5...383/383001.jpg http://i85.photobucket.com/albums/k5...383/383002.jpg http://i85.photobucket.com/albums/k5...383/383003.jpg Here's the growing pile of parts. http://i85.photobucket.com/albums/k5...83parts001.jpg I didn’t have access to a digi cam during the week that I got the block back from the machine shop and painted/assembled the shortblock, so I didn't get any pics until the very end of assembly, but here's the finished product. The block was tanked & magnafluxed, everything looked great! It was bored .030" oversize, zero decked, squared, line bored with new ARP main cap bolts, and honed with torque plates. The bottom of the cylinders and oil pan rail were clearanced for the longer crank stroke. New cam bearings, oil galley plugs and freeze plugs were also installed. The rotating assembly was balanced externally. The bottom end consists of a Scat 9000 3.75" cast crank, forged 4130 I-beam bushed 5.7" rods, Speed Pro hypereutectic 12cc dished pistons and 5/64, 5/64, 3/16 moly ringpack. The oil pump is a standard volume/standard pressure Melling Select #10553. The cam is a Comp retro-fit hyd roller XR282HR, and the timing set is a pro comp billet adjustable double roller. http://i85.photobucket.com/albums/k5...383/383013.jpg http://i85.photobucket.com/albums/k5...383/383010.jpg http://i85.photobucket.com/albums/k5...383/383009.jpg http://i85.photobucket.com/albums/k5...383/383012.jpg http://i85.photobucket.com/albums/k5...383/383011.jpg Main bearing clearances are set at .0027”-.0030”, rod bearings are .0025”-.0027”, rod side clearance is .018”-.020”, thrust clearance is .006”-.007”. Cam endplay is set at .006”. One piece pan gasket, only way to fly! http://i85.photobucket.com/albums/k5...383/383014.jpg |
Re: It's 383 time!!!!!
Same "Super Duper" Ebay 5 qt oil pan rag'nrat used on his build, thanks for the idea Mark!
http://i85.photobucket.com/albums/k5...383/383015.jpg http://i85.photobucket.com/albums/k5...383/383016.jpg Shortblock is done!! http://i85.photobucket.com/albums/k5...383/383021.jpg http://i85.photobucket.com/albums/k5...383/383020.jpg http://i85.photobucket.com/albums/k5...383/383019.jpg http://i85.photobucket.com/albums/k5...383/383018.jpg Time for cylinder heads. I used 906 casting Vortecs. They got a 3 angle valve job, new guides and new stainless valves (1.94/1.50), along with a cleanup mill. They cc'd at 62-63cc. The studs were pulled and screw-in studs and guideplates were installed. I had to enlarge the pushrod holes with a dremel to clear the pushrods. http://i85.photobucket.com/albums/k5...383/383037.jpg http://i85.photobucket.com/albums/k5...383/383036.jpg Checking for pushrod length and piston-to-valve clearance. Pushrods ended up being 7.266" (you can see the wipe pattern on the valvestem, perfect!) and I had almost a half inch of ptv clearance on both int/exh, so no worries there. The head gasket is a Mr. Gasket ultra seal, .038" compressed thickness. http://i85.photobucket.com/albums/k5...383/383039.jpg http://i85.photobucket.com/albums/k5...383/383038.jpg |
Re: It's 383 time!!!!!
The heads were torqued to 65ft lbs, and the retro-fit roller lifters & pushrods are installed. I had to sneak a header test-fit in there too!
http://i85.photobucket.com/albums/k5...383/383041.jpg http://i85.photobucket.com/albums/k5...383/383033.jpg http://i85.photobucket.com/albums/k5...383/383032.jpg http://i85.photobucket.com/albums/k5...383/383034.jpg Now comes the stainless 1.6 roller rockers and poly locks. The valves were adjusted to zero lash + 1/2 turn. http://i85.photobucket.com/albums/k5...383/383042.jpg http://i85.photobucket.com/albums/k5...383/383045.jpg http://i85.photobucket.com/albums/k5...383/383046.jpg New GM vortec intake gaskets. http://i85.photobucket.com/albums/k5...383/383040.jpg http://i85.photobucket.com/albums/k5...383/383044.jpg |
Re: It's 383 time!!!!!
Time to make some plug wires.
http://i85.photobucket.com/albums/k5.../383/383-3.jpg Home stretch! On goes the Edelbrock 750cfm carb and fuel line. http://i85.photobucket.com/albums/k5...383/383048.jpg High flow polished water pump is next. http://i85.photobucket.com/albums/k5...383/383049.jpg Here she is guys! Air cleaner, alternator & water pump pulley and mini starter installed. http://i85.photobucket.com/albums/k5...383/383052.jpg http://i85.photobucket.com/albums/k5...383/383050.jpg http://i85.photobucket.com/albums/k5...383/383051.jpg http://i85.photobucket.com/albums/k5...383/383053.jpg http://i85.photobucket.com/albums/k5...383/383054.jpg Getting ready to drop in. Here’s the flywheel and centerforce dual friction clutch & pressure plate installed. http://i85.photobucket.com/albums/k5...383/383055.jpg http://i85.photobucket.com/albums/k5...383/383056.jpg |
Re: It's 383 time!!!!!
No more Flinstone power for this swb!
http://i85.photobucket.com/albums/k5...383/383062.jpg Here’s the install, luckily my old man stopped by to help, it took some persuasion to get the motor in the mounts. The energy suspension poly inserts made for a VERY tight fit. http://i85.photobucket.com/albums/k5...383/383064.jpg http://i85.photobucket.com/albums/k5...383/383067.jpg Here are the specs of the motor/drivetrain now: -'69 L48 block, .030" over, zero decked, align honed -Scat 9000 crank, 4130 forged 5.7" I-beam rods, speed pro 12cc dished pistons and moly ring pack -ARP main cap bolts -Comp XR282HR retro-fit hyd roller cam & lifters (cam doctored at 232/238 .544”/.555” with 1.6 rockers, 109 LSA) -Pro Comp adjustable double roller timing set, billet gears -10.4:1 static compression, 8.2:1 dynamic compression, .038” quench height -906 Vortec iron heads, 3 angle valve job, 1.94/1.5 stainless valves, comp 918 beehive springs, ARP screw in studs and guideplates -stainless 1.6 full roller rockers -Comp magnum pushrods (7.266”) -Edelbrock RPM Air Gap intake, port matched -Edelbrock 1407 performer carb (750cfm) -MSD streetfire HEI distributor & curve kit -Taylor pro race 8mm wires -Pro Comp high flow polished water pump -ARP fasteners used wherever possible -Wysco stainless longtubes, 1 5/8” primaries, 3” collectors -3” custom mandrel bent dual exhaust (no crossover), flowmaster super 44 mufflers -Centerforce 11” dual friction clutch -M21 close ratio muncie 4 speed, hurst shifter -3.42 rearend I know some will ask---For those that are interested in what it costs to do something like this, the total for parts & machine work was $6300, but I parted out the original L48 on ebay and sold the old 355 in my truck, making the final tab right at $4500. The only parts reused from the 355 were the motor mounts, and I only re-used 1 bolt from the L48 (it’s holding the flywheel dust shield on, lol). Everything else is brand new. And here's what you've all been waiting for......she's alive!!!! http://i85.photobucket.com/albums/k5...th_383idle.jpg Hope y’all enjoyed! I’ve got 175 miles on her now….still have 300 miles of breaking in the clutch before I can see what she’s really got, but lemme tell ya---it pulls HARD. On paper it should be over 450hp and creeping up on 500ft lbs. Less than half throttle up to 3k rpm is smoking that poor right rear tire already. Traction bars, better tires and hopefully a posi are next on the list!! As soon as everything is broken in, I’ll post a clip of me bangin’ through the gears!:burnout: |
Re: It's 383 time!!!!!
Very nice, i'd like to build one or have one myself.
What headers are thoose and what coating is on them, look great. Sounds great too, I love the cam lope, it aint a motort without the cam lope to me. What exhaust you running? sounds like flowmasters what series are they original 40? how about the rest? Duals, cats? x pipe? |
Re: It's 383 time!!!!!
The motor looks great, what's even cooler is seeing you and your ole man working on something together. Pops is key!!
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Re: It's 383 time!!!!!
very nice bulid and go looking motor and truck you will have fun with them 5.0
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Re: It's 383 time!!!!!
Sounds good congrats and lets get an in truck ride once broke in...
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Re: It's 383 time!!!!!
damn bro...that is sick....you have my envy
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Re: It's 383 time!!!!!
Beautiful motor!. What brand of intake paint did you use???. Looks really cool.
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Re: It's 383 time!!!!!
i like....
i have a question.... i see you used "bee hive" springs... did you have to machine the valve spring seats at all? lots of lift u have there with the 1.6 rockers |
Re: It's 383 time!!!!!
[QUOTE=benoit454;2241562]
What headers are thoose and what coating is on them, look great. QUOTE] -Wysco stainless longtubes, 1 5/8” primaries, 3” collectors |
Re: It's 383 time!!!!!
LOVE IT!!!!! :metal: :burnout: :metal:
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Re: It's 383 time!!!!!
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Thanks for the kind words!:) |
Re: It's 383 time!!!!!
man thats one nice engine..looks good...good to see your pops working with you...i envy you that..
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Re: It's 383 time!!!!!
looks like a job well done.good looking motor.well,i gotta ask,any plans on lowering that truck?
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You said you have H beam rods, I was just wondering if that is what they are. My rods look just like that, and I thought I had Eagle SIR I beam rods. Do I actually have H beam rods??
Robert |
Re: It's 383 time!!!!!
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Good catch there bobs86silv, that was a typo on my part----they're I-beams, not h-beams. Fixed it! |
Re: It's 383 time!!!!!
Great job documenting the assembly of your 383 - sounds great and looks great!
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Re: It's 383 time!!!!!
so where did you buy thoose headers at they are beautiful.
As for the super 44's sound great, I considered ordering them for my car, makes me think I want to now for sure. Didn't you have reg. 40's before? Whats the difference in comparison between sound outside and in at idle and driving? |
Re: It's 383 time!!!!!
I bought the headers off ebay from seller skipwhite last fall.
Yep, had regular 2.5" 40's on the old motor. Since my exhaust is now dumped under the bed, it's pretty much loud all the time...inside & out.:lol: |
Re: It's 383 time!!!!!
Are those 5.7 or 6 inch rods ?
Thats a sweet looking motor, sweet truck, and the Muncie just completes the deal. Thats gotta be a fun ride. |
Re: It's 383 time!!!!!
yea thoose are the 3/4 car headers aren't they? I know what headers I'm buying if I ever get another set, they look great, and I think you might have made my mind up on what flowmasters to buy too.
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