Thread: Need some help with my 327

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ok im new here in hope to get some info i picked up a 327 2yrs ago and no getting to it. i ran # and its a 1962-67 327 2bolt valve covers said turbo fire.
so far i know this its got 3998992 heads and its .040 over and has a cam but i only have heads off so far.
Hers my questions
How are these motors?
What heads are these and are they any good?
Wheres a good place for gaskets/rings cause from sitting i plan on new gasketsa nad rings.
Also it lookes like theres been machine work done to the crank? like cut and weld marks

So anything??? 22 views no rply i kinda need to kno asap thanks

Have patience, Grass Hopper. Just because 22 people looked at your thread doesn't mean those 22 people have anthing to offer you. Sometimes it takes a while to get some responses, especially at night when people are not on for the most part.

As for your question about how are the 327's, they are very good motors and in some ways more desirable than the 350's. They wind up a little quicker and were used in everything from family cars to Vettes and other high performance cars. But not all 327's are equal.......some were low performance and some were high performance.

I looked up the head numbers and think you might be off on the last digit, but maybe not. In any case, they appear to be 75 CC heads, nothing real special. But if there is a cam in there they might have done some head work too. Buying someone elses motor always leaves some gray areas, and without tearing it down you really don't know what you have.

As for rings and gaskets, any auto parts store can fix you up, and also places like Summit Racing. But if it only sat 2 years since it was built, I wouldn't think all that stuff would necessarily need redone, depending on how it was stored.

Don

327's were a good engine, they'll rev like a banshee with the right valve train. The heads are smog era junk, but lots of good aluminum heads on the market to cure that. Hard to say what's been done to the crank without some pics of it. For parts, most any parts store or online sources like Jegs or Summit... As to whether the engine is "good", depends on what the application is and the parts you get for it!!!

75 cc head chamber is abit big for a 327 it will be low on CR

My book does not list a 3998992 but there is a 3998991 and 3998993 casting numbers assigned. NEITHER are 327 heads, both are listed for 68-79 307 or 350 engines, the 91 being a 74.5cc head and the 93 being a 75.5cc. These were used in really low HP motors.

There is also a 3998997 which is a 71-73 350 or 400 ci engine with a 76cc chamber.
Like Pat says, the high cc chambers make for a low compression ratio.
mike in tucson

327s are tough motors. They were the basis of most small inch racing engines all through the '60s. I personally built many solid lifter 327s, and some saw 8500 RPM regularly, with no failures. I also beat many a big block GM, Ford or Mopar with them. :-) Good times.

yea my bad there the 991 heads i thought they were the 307/350 but this guy i bought it from was going to put it in his chevelle but im thinking of getting a 88 firebird fourmula wit no motor/trans and i was going to do this 327 with a 5speed trans.
Im just thinking if this be good motor to work up i have around 1k to do it id like it to be snappy and tire burning lol

Since the 327's came with hp anywhere from about 250-340 hp (360 with FI) even if your block is one of the lower hp ones it can still be built with more pep. Good heads would be a major improvement, and some of the aluminum ones are pretty reasonable now, if you compare the cost of having iron ones done up. If your pistons are flat top they should make about 9-9.5 cr depending on head volume. Add a nice hydraulic cam, aluminum intake, and a carb around 600 cfms, and it will run very well.

In some respects the 327 has more "cool" factor than having a 350 in there. Everybody loves them. probably because we grew up with them and never ended that love affair. A buddy of mine bought a 64 Vette 327/340 horse and when he wanted a backseat to take some chick out he would trade me for the night and use my 64 Chevy convertible. At the end of the night I never wanted to give him the vette back, it was one cool little ride. That baby would haul !


Don

yep they were great small engine. built them for customers and i had some 327 engines with the 30/30 cam and the 350hp hyd cam. speed pro. but many tried no 327 got around one of my bbc last guy back in 82 tried to hang with the 396 i had at the time in the gto.that engine was like a timex watch i was around 6700 rpm in fourth gear the gto around there was like ridding a log threw a buzz saw the hole car would start to hum.I watch him blow it up four cars back on the hi way

i have a new set of dart pro 1 s with 64 cc heads that i let go at a very fair price that would help you alot there 180 runners strait plug heads .i used the PBM thunder iron heads and they work very good a price right and not a china head

Ah yes, the legendary 30-30 cam. We all had to have one or you just weren't cool. And if you didn't have one you pulled the vacuum line off and lied.
Don

I still have an Isky 30/30 in the garage

well i dont think my 327 was a low hp motor.
i got it with a 650 carb/eldebrock intake/its bored 40 over/machined crank/has a cam not a stock can tell by lobes but not to big either.i think they threw the 911 heads on for what idk? it says my engine factory wasa 210-275 hp motor and its a turbo fire 327.

what happened was the engine sat in a shed for few months carb open
low on oil
last winter i pulled the top end off and relized it was 40 over well i relized it was fresh rebuild he didnt run much do to probls(jail) and it got some seface in the walls on some cylinders. After some marvel oil hand turning it turns over good.
pulled the pan off wich is new and the end main bearing cap and looked at bearings ...New also you cant still see the hone marks in cylinders.



Plans are to pull crank out/pistons have the cylinders deglased see if that will take the rust out if so new rings and gasket set/ pull cam check # see what it is go bigger and find a decent good heads.


Or what sone good things to do to get more hp out of it $all at or under $1k