383 stroker swap. any help/walkthroughs muchly appreciated!

[foxrider251]

hey guys as the title says im gonna be swapping in a 383 stroker into my kon. im gonna reuse my vortec heads on the 383 block and try to keep it as simple as possible. any tips or hints would be very helpful as im getting ready to begin this project soonish

 

[retorq]

Step 1. Remove old engine
Step 2. Remove heads from engine
Step 3. Install old heads on new engine
Step 4. Install new engine.

 

[foxrider251]

yes thanks ive got that far on my own lol what im puzzled about is the fuel delivery? i dont think that stock spider assembly will put out enough when a guy starts laying into the throttle. it might be okay in the lower rpms

 

[ezdaar]

could slip a nitrous plate in to comp the fuel as needed.

 

[foxrider251]

this might be a stupid question but whats a nitrous plate?

 

[SunlitComet]

i would inspect your head and get them cleaned up before reusing them. and as i said in "a second thread" of yours on the same subject the fuel system will work just fine but a retuning of the pcm to accommodate the 383 will help to. it would still work with out a retune tho.

 

[Ceejkay]

yeah the spider will be fine. but get those heads checked.

 

[ezdaar]

Have the pushrod holes elongated and screw in studs installed while the heads are off.

 

[retorq]

While you are at it have a real cam and matching valve springs installed too. /

 

[SunlitComet]

head modifications are not needed unless you intended to seriously modify the cam profile instead of just boring and stroking. you can have some comp cams camshafts that are computer compatible that can even accommodate roller tip rockers 1.52 rockers with no need to modify heads at all. just elogating holes and adding scew in studs by themselves now is just a waist of money. you will not need it and with even the minor changes i mentioned above it is not required.

 

[foxrider251]

sorry havent been on much worked over 100 hours in the past 6 days but thanks guys alot of good info in here so far, its gonna be another couple weeks until i can afford start buildng it, gonna start tearing everything out here in the next couple days tho if work tames down a bit. i think im gona tear the tranny out too at the same time and send it off to get rebuilt with some heavy duty clutches and shift kits. might as well while im this deep in er. then while im waiting on the tranny i can go through and redo all my u joints and what not

 

[foreverfalcon40]

Do not waist a plucking penny on the 60e if you plan on beating the balls out of it! Just go with a shift kit, cooler, and a deeper pan.

 

[foxrider251]

okay well one thing i forgot to mention is that the 383 is out of an 80's camaro, will it have all the sensor hookups in the block that i need? the head and everything isnt a big deal because itll be my vortec head as i said before but im just wondering about the block being older whether itll be compatible or not?

 

[SunlitComet]

would need a year to look into it.

 

[retorq]

If it's a non-vortec block you need to address the missing internal bypass, the easiest way is to have the machine shop drill the heads for it.

 

[no cigar]

I'm curious about screw in studs if I'm running an LT4 hot cam. Thoughts? Also what size are the studs on the stock heads? 3/8??

 

[retorq]

All small blocks had the 3/8ths stud from the factory, screw in is good insurance, with the right springs you won't NEED to touch them but it's good for that lil piece of mind it gives you knowing it won't easily pull out.

 

[no cigar]

I'm running the LS6 beehive springs.

Sent from my SCH-I535 using Tapatalk 2

 

[retorq]

Good choice, those are the ones I run in mine. You really don't need to swap the studs but like I said, it's piece of mind.

 

[no cigar]

Awesome. What about the other components like rockers/lifters/pushrods? I think I'm going to go with a cast/roller tip rocker but all my lifters looked good so I might re-use those. Thoughts?

Also when getting pushrods, is there any standard length or do you have to measure length, then buy?