Okay. Im thinking that sometime later down the road I may want to add a wet nitrous kit on after I build my engine and a kid I know reccomended I use the fel-pro permatorque head gaskets. Seem like a pretty good head gasket.

Just wondering what else would be a good investment into not having to rebuild my engine after I screw it up.
Going to have to build it more stock for now with a performer rpm intake and a 600-750 cfm carb and a mild+ cam
Not planning on running anything more than 100 shot of n2o.
Gonna go with hyp. pistons for now

Also, when they say a 500 shot or a 100 shot, what can you realistically expect to gain from it?

 

with a 100 shot, your prolly gunna get an 80hp gain, 110 Ft/lb gain. Retard your timing about 2 degrees, and you'll be fine. You won't really have to worry about blowing out a head gasket or nothing. A 100 shot is a relatively safe shot on a stock V8. BUT, If your going to do a rebuild on your 305, you should honestly look into getting a stock used 350 for about 200 bux (yes they can be bought for VERY CHEAP). Then use your rebuild money on that to freshen it up. Thats a 75 hp improvment right there for 200 bux more than the cost of your rebuild. Throw on that 100 shot and get a total 160hp, 200 ft/lb gain! I'd look into it man. Good luck.

 

Stupid me. I forgot to add in this thread that Ive got 2 350's. One is a short block the other is a longblock. Both need rebuilt. Im pretty sure both are 69-80 blocks as well.

Im planning on rebuilding them. The 305 tbi will prolly just it on an engine dolly in case third gens become truly collectible someday

 

good rod bolts and head bolts/studs. Also looking to a wideband like an LM-1 to moniter your air/fuel ratios when you are using nitrous as well as something to retard the timing (if you plan on over 100shot). Also make sure the you have all the safety stuff for the system (FPSS, Window Switch, WOT Switch, etc.) There is no one set "shot". Your fuel pressure and nitrous pressure will determine the jets you need for a desired hp setting. If you have "100 shot" jets and you only get 80 hp....well then you have 80hp jets.. its different for every application.

 

Gap the rings retardedly wide. Like comically. If they get hot and seize in the bores you're screwed, if they can't butt together then you're laughing.

If you re-use your stock head bolts, buy hardened washers, and put oil on the washers. Torque it up "by the book", so it's perfect. If you give everything a fighting chance, you'll notice it's a lot more reliable then some people give it credit.

Wheelsup has the right ideas there.

 

nitrous is good and easy to use. each manufacturer suggests different jetting for different shots but youll find out some measure to the wheels and some at the crank. just make sure you use the right jets and remember richer is always better than leaner on nitrous. also put in a step colder plugs too to be safe. retard the timing maybe 2 degrees from stock although you should have to last time i ran a 125 shot on a bolt on LO3 with 0 degree stock setting. check your connections to make sure nothing leaks, trust me i know it sucks when you lose a whole bottle and not know about it. ive used nitrous off a launch but some suggest 3krpms and above to be safe to so no puddling although ive never had a problem but i guess im ballsy. goodluck, have fun, and be safe.

 

forgot to add that i started pushing out my stock headgaskets on a 150 shot but that was after roughly 20 bottles give or take. they didnt go fully but started to leak but you should be fine with a lower shot and you probably wont go as crazy using it as me so good luck.

 

Is it safe to set up a nitrous kit on an engine with only a few bolt ons? (msd 6al, blaster coil, afpr, exhaust, k&n filter) I was doing some reading at summit racing and its making it sound like a bad idea (lousy fuel pressure from the stock pump, no aftermarket chips, etc.) Maybe that's just them covering their own @$$es but I would like to know. Debating between maybe that or a stealth ram this winter, with heads and a cam coming next year if i get the hsr. Thanks.

 

The problem people run into with running a nitrous on a stock or mild built motor is fuel pressure. if your running a wet kit then your stock pump might have a hard time keeping up. the last thing you want to do with nitrous is run lean. Make sure you have more then enough fuel. i am running two pumps, one for motor then one on a switch that comes on before the hit so i have fuel pressure to the noids.

Like the others said a stock block is good to about 125 shot but if your fuel system is not. the motor wont last.

 

Where did you mount the second fuel pump?

 

Since i am running a mech. pump for the motor i bent my own lines to run on the right side of the car. i stuck the electric pump in the hump in the floor board where the back seat mounts to ( i had to tear the mount out but since i am not running a back seat it not a problem). should be far enough away from the exhaust and it tucks up nice. also making a panel around it to keep debris and heat away also.

 

get a walbro fuel pump. Thats what im doing now

 

how are you guys pushing head gaskets on spray? you arent adding that much additional pressure. I sprayed my budget 350 for over a year no questions asked and I sprayed my 200K mile LS1 with 150 on a weekly basis with no problems for about a year as well.

 

*cough* detonation *cough*.
Normal nitrous doesn't blow head gaskets, only detonation does.
You can use studs, add o-rings, copper head gaskets, etc. But all that does it make it last longer under detonation, or make the next weakest part break. I'd rather use the "cheap-like-borscht" head gaskets, and use them like a fuse. They are cheap to replace, and it lets me know I was detonating.
Unless we're talking 300+ HP, then the story changes.