360cui Performance

[Zyli]

Hi
I have a 1972 360cui Engine in my 1974 Fish.
What for Parts I must taken for maximum Street/Strip Performance ?
What for Parts could you recommend and how mich i could get from this Engine without Stroke ?

 

[Cudafever]

first step is to check your float level and then adj you carb, next would be recurving you dist.

 

[moparleo]

Hi. Your question is very vague. Are you talking about minor things like a tune up or are you talking major engine work ? What is your budget in US dollars ?

 

[Adam]

if the engine is basically stock I would recommend a better cam shaft; also a performance converter and performance valve body for your trans (assuming it is an automatic)' these will really wake up the car... there is a ton of good info on the web about this engine, just need to figure out what you want it to do, and how much you want to spend.

 

[Zyli]

When I say made a 500 Horsepower 360cui for Street/Strip but no Stroker engine , was this realistic ?

My Car have at time :
Stock 727 Transmission with Stock Converter.
3,55 sure grip rear axle
Holley 650 cfm Double Pump Carb
Weiand dual plane intakte manifold
MSD Street Fire Ignition Box
MSD Blaster SS Coil
Stock Distributor
No Name Header
Mild Com Cam Camshaft but I didn't
Know in it be a hydraulic roller or what ?
It be a Stock 360cui engine, with this base I will get morgen Performance.

 

[IQ52]

1.4 hp/ci? Realistic? Sure! My father told me there are three secrets to making horsepower. The first two are cylinder heads and third and most important.......cylinder heads!

So then.

Complete engine dis-assemble. Aftermarket flat top pistons 10.3-10.5:1 compression, ported aftermarket aluminum cylinder heads, valve springs, retainers, and locks to match the camshaft, single plane intake or ported Edelbrock airgap dual plane, 850 cfm 4-bbl, solid or hydraulic street roller camshaft (I prefer solids), hydraulic or solid roller lifters, bronze gear intermediate shaft, Comp Cams Pro-Magnum 1622-16 shaft rockers and custom length pushrods, high volume oil pump, Firecore50 distributor, the no name headers will work as I have tested the TTI $700 headers vs Summit Racing brand $130 headers and found 1HP average difference up to 6,000rpm. 3,000-3,300 rpm stall converter. Not a complete list but where I would start. I think you get the idea.

 

[Zyli]

Thx IQ52 for this awsome List and help.

Which Cylinderheads you are prefer ?
Alu or Iron ? X Heads or ???
Iknow the Edelbrock Alu Cylinderheads but there will be for sure more geat manufacturer as Edel.
What about RHS Indy X-Heads for the 360cui ? This Heads are good ?
Which one you could recommend ?

 

[Cudafever]

IQ52 Wrote
My father told me there are three secrets to making horsepower. The first two are cylinder heads and third and most important.......cylinder heads!

LOL love it!!!!!
I would go with the RHS heads as i have them, and they work well.
Mine were built by Brian at
IMMENGINES.COM

 

[IQ52]

I've used both the LAX heads and the Edelbrock aluminum. I prefer the Edelbrock RPM heads with the 2.02" intakes replaced with 2.055" intakes and then ported. On 91 octane pump gas we used the LAX 1.94/1.62 heads to make 468HP with a 292ci/273 engine and the Edelbrock 2.02/1.60 to make 601HP with a 360 stroker.

Here are our LAX heads set up with Chevrolet rockers..........

And yes they are the LAX heads not the Magnums. I used the LA rocker shaft stands to anchor the stud girdle after I installed rocker arm studs in the LAX heads. Used this system to run to 8,200 rpm. Here are the airflows with the 1.94 intakes and the 2.055 intakes in the LAX heads.

Lift..........1.94........2.05

.100........77cfm.....78 cfm
.200.......144........147
.300.......191........203
.400.......234........241
.500.......264........275
.600.......280........296
.700.......283........306

So, I guess I'll post this now and see if the photo shows up in the post.

 

[Cudafever]

8200 rpm. that's a vary stable set up.
could you explain the gold bar across the top?
Just don't get how this setup works.......

 

[IQ52]

These pictures may help. The "gold bar" is a stud girdle used to tie all the rocker arm adjusting screws together to help keep the individual adjusting screws from flexing under load.

 

[Cudafever]

Ok thanks alot! they say a picture is worth a 1,000 word an this is no exception.
So......the GM stud design was chosen to be able to get the right valve tip geometry thru proper push rod height/length?
Always felt that the chry shaft mount was way stronger. That set up look plenty sturdy!