Valve Train questions

[ColinMc]

Hello all,
I'm a newbie to the forum and have a few questions after reading through a LOT of posts lol. I'm rebuilding my 30k mile 92 typhoon because well...it needs it after sitting for quite a few years in storage. I think I have the bottom end figured out. Going with JE pistons, H Beam connecting rods, ARP hardware all round. But I was curious as to recommendations for valve train upgrades? I am trying to keep the truck looking as stock as possible, inside and out. So I'm not doing any major upgrade performance wise. As long as I have the engine all in pieces i'm just curious as to recommendations for valve train upgrades? I plan on running possibly slightly higher boost levels, nothing crazy though. I'm going for reliability and durability more than all out performance. I know this questions has probably been answered before...sorry but any input would be great!


Thanks,
Colin

 

[critical]

Re: Valve Train questions

3 angle valve job, gasket match on everything, roller rockers, cam upgrade, 3'' down pipe, chip, external waste gate, inspect sensors, replace oxygen sensor, the list goes on.......beware of shady machine shops!

 

[blk00z28]

Re: Valve Train questions

Do you want this truck to put up a xx.xx at the truck for you or do you want it just to be a fast street truck? And explain the "possibly slightly higher boost levels?" Cause there are a few of us running high boost on the stock motor. I'm somewhat one of them. :lol:

 

[It's just a six]

Re: Valve Train questions

I think it would be good for you to get 1995 Vortec heads. They bolt right on and flow better than the stock ones. Just a thought good luck!

 

[RSpengler]

Re: Valve Train questions

I think it would be good for you to get 1995 Vortec heads. They bolt right on and flow better than the stock ones. Just a thought good luck!

Vortec Heads are NOT a direct bolt on.
-Rob

 

[dgoodhue]

Re: Valve Train questions

95's would be a direct bolt on.

The confusion is that GM stated calling Vortec motor well before they were using the heads that were the derivative of the SBC Vortec heads. Common usage of Vortec heads is 1996 and newer. 1991 GM literature even call the Syclone motor a Vortec motor. Anyways, 95 with the "Vortec Motor" are consider L35 heads even though the intake manifold maybe have been ingraved with Vortec.

 

[RSpengler]

Re: Valve Train questions

Ah, I never heard L35's called Vortec's before... Pardon my ignorance.
-Rob

 

[ColinMc]

Re: Valve Train questions

Oh ok thanks for the info guys! I have a friend who works at a local machine shop. He builds race motors to make his real money and knows his stuff. Did over 5k worth of work on my supra motor for 400 bucks lol. Needless to say I trust him since he understands the extra needs of turbo motors and is an all round cool guy heh. As far as boost levels go. I'd be getting a stock rebuild on the turbo i've decided. So I plan on running just a few lbs over stock. My main concern is reliability. If I want a heavily modded typhoon, it won't be this low miles 1 owner one. The previous owner being my dad. I was actually told I should swap the motor out for a reman one! My dad and I have worked hard and spent a lot of time keeping this truck original, not about to throw that away by having the numbers not match! Even has the original crappy stereo lol. Anyways, I've been thinking about it, and i'll probably even stick with the factory valve train, maybe just a spring upgrade and some new stock replacement valves?...I just don't want to go that crazy here.

Thanks,
Colin

 

[QUICK STORM]

Re: Valve Train questions

i would do everything possible to upgrade our downfalls i.e fuel pump, cylinder heads, valve train, downpipe etc....

basically, take all the info you can get hear and do it right the first time, so you don't have to do it again.

 

[ColinMc]

Re: Valve Train questions

Turns out this truck had more problems than we thought when I took the motor apart. Number 4 wasn't getting fuel, number 1 had a nasty groove in the cylinder wall, and number 2 had a chunk gone from the lower part of the piston right below the oil ring...I have no idea how the thing ran at all, and didn't burn any oil for that matter! So i'm going with a crane cam, roller rockers, valve springs, valve job, bored .030 over and replacing the whole rotating assembly. Is there any company that sells the whole assembly already balanced and ready to go? By rotating assembly I mean the crank, rods, pistons and rings. Thanks for all the info guys btw...Appreciate all then help.

 

[Robert Lone]

Re: Valve Train questions

Contact John Waller (jwaller is how he posts). I'm pretty sure he can get you a balanced rotating assebly. He builds motors (very well) so I know he has access to the goods. Shoot him a private message.

Robert