I am just in the Process of setting up my 98 ' Vortec SBE 350. I am glad to see that the SBE holds more than the "usual" SBC guys think or report. I am wondering what Power level do you get? have you thought about TB EFI with Timing control?
My Vortec 350 is making about 500 hp in this configuration. With a bigger cam, it will make 700+ hp. I do have a timing control, I have a MSD 6 BTM box. I'm pulling 1 degree per 1 psi boost. I will probably never have EFI, I just like carbs better.
@@sbcperformance413 what in your experience is realistic NA. Power and Boosted Power on a stock bottom end vortec 350? I bet you found your limits already. Reason I’m asking is I have a perfectly fine bottom end and don’t see a reason to go in and change it
@@sebastianhermeth2829 Well, I've seen people make 750 hp with a stock bottom end vortec 350. I like to keep my builds at 600 hp or less, because that is about the limit of what the rest of my Blazer can handle.
Really like the videos. Cool to see turbo sbc blow through working so well! I’ve got an S10 I 350 swapped and it’s nose heavy/traction limited, did you set your engine back to help with this, or move weight around in other ways?
I did move the motor back 3 inches, but it was more for water pump to radiator clearance. I know some people that have S10's, and they always added weight right against the tailgate, and it worked great for them.
I'm about to put a gt45 on a stock 305. My question is how stock is this engine? Do you just mean that it has a stock block, stock rods, stock crank, and stock heads? Because if it has those things I will accept it as a stock 305. I can't recall all the hp numbers but I'm almost sure that the most hp any stock 305 was at most about 200hp. So, on 10psi of boost and 200ish hp, I don't really see how this S15 can be so fast. I'm almost positive, it at least has a better than stock cam, and some ported stock heads, stainless one-piece valves, pinned or screw in rocker studs with better springs, lol. In which, I would still call it a basically stock 305. I just want to know because everyone I know is telling me that if I put a gt45 turbo on a stock 305 that it won't get in to boost until it redlines, lol. I don't believe them but it's really making me re-think everything and holding up progress.
The only parts on my 305 that are not stock are the valve springs, rocker arms, intake, timing chain and valve covers. The stock 416 heads have a bowl blend and that's it. The rocker studs are stock, and the cam and lifters came out of a 1984 HO 305. The cam is 202/206, .403/.415 on a 115 LSA. The bottom end has the factory crank, rods, pistons, and rings. Part of the reason mine runs as good as it does, is because I'm using a 2 step. It let's me leave the line with about 2PSI of boost. The other part is, I'm running 20 PSI boost total.
@@sbcperformance413 holy smokes what do stall do you have, or better yet what rpm are you launching at? This is very reassuring and helpful. That thing is a beast for such a basic little engine.
@@sbcperformance413 Thank you, I am now way more motivated to continue my 305-turbo project. It might sound dumb, but having someone that is supposed to know some stuff tell me that my set up will not make boost until it redlines really got to me. It had me rethinking everything and took away my motivation. Thanks for answering my questions, im going to go work on my stuff now.
@@davidcraft4909 Don't let the doubters discourage you. A GT45 turbo will work fine on your 305 as long as you have a good fuel system and ignition system.
@@sbcperformance413 dang, that's moving! So far my mostly stock 318 Magnum turbo with a billet 7875 has gone 7.016 @ 101.63 mph on 16 psi, but I'm turning it up this year.
I had to move my steering column to the left about 2 inches to clear the eBay turbo headers. I have a video that I can upload that shows the steering shaft and header clearance, if you want to see it.
Is this the same truck that you race now, with a different engine? 👌 It is a really nice build! I saw that is was a 413 in the description, was it a stock block or aftermarket? I still cant get over how fast your 305 was, all these years folks have said that the 305 was not worth the time, hell I think you will make my 498 cbb look bad beside that thing! Keep it up, man!💪😎
Yes, it's the same one, back before I got it painted. I had a .060 over stock 2 bolt main 400 block in it then. It ran 7.40's without the turbos. I never got a chance to see what this 413 with the turbos would do at the track because about a week after this video was made, I destroyed the #1 piston out playing around on the street lol.
@@sbcperformance413 Okey, yeah I tougth so! It is a cool truck! what a shame, that the piston got destroyed☹️ it did sound really angry when the boost kicked in. I would like too build a SBC turbo some day, just like you. I have a 1986 350 tbi that will be bored 0,30 over, and a ebay single turbo kit. Is it a terrible block to build on or what do you think? 2 bolted also🫣 I did save the stock cam, remember that you used stock cam on the 305. And I got a Msd box that is boostcontrolled. And a Holley 750 that is buildt for boost.
@@swedespeedgarage255 That block should be fine, especially with a stock cam and TBI heads. It should make around 450 hp with about 15 to 18 PSI boost.
Scared to put one on my stock block 400 sbc.Its already pushing just under 500hp with 10-1 compression.I am afraid of blowing up this stock block.Great video thanks for posting.
How did you put all the rusted floors and fenders back together on this baby? I've never seen one not rusted to Hell and back! I think Chrysler used a thinner gauge steel in the 70s. Their cars rusted coming down the assembly line!
That intake looks different, what part number is it? This is cool I have two lt1 motors I wanna put the heads on old block. Those hoses run from the front of heads? What size hose is that? Thx Bill
Thank you for reply, I thought new water coolant holes needed to be drilled by using gen 1 head gasket for template in order to get the coolant up to tapped holes on front of heads. Thx Bill
@@billjeffers2396 I used 8AN hose, but this setup was for drag racing only. If I was building something like this for street use, I would drill the holes in the front of the head to accept a 12AN fitting and use 12AN hose.
Or you might keep the heads and add 2 fittings on the intake so no T But why if it stays cool and with where they are you could drill and tap them bigger without needing to remove your heads
whats your total timing on 6lbs of boost? also 93 or e85? I have a stock bottom end 350, vortec heads, jegs .490/.490 cam, and gt45 turbo on e85. tuning it is a bitch and a half, but getting it there.
I have the MSD 6 BTM. I have the timing set at 32 degrees initial and the boost retard set at 1 degree per psi boost. So, at 6psi boost, It's 26 degrees. I run 93 and a Snow Performance water/methanol kit.
