How much horsepower will I get????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jugernot · 02-17-2005, 10:21 PM

How much horsepower will I get from this engine?

327 Large Journal Block .40 over
Steal Crank
TRW forged pistons 9.96 comp ratio
Speed Pro Moly rings
Michigan 77 rod and main bearing
Edelbrock Proformer RPM cam and intake
Pete Jackson noise gear drive
World Torquer Heads
Manley Swirl polishied 2.02/1.60 valves
67cc combustion chamber
3/8 studs
Comp Cam roller tip rockers and lifters
Edelbrock 750 cfm carb.
350 turbo street/street transmissions

Dean23 · 02-17-2005, 10:41 PM

I got about 410 horse at 5500 rpm and 424 ft/lbs at 4500 rpm

SweetandLong68 · 02-17-2005, 11:12 PM

Do you have any specs on the cam?

What are the headflow numbers? What size runners?

lata
CHRIS

Quote:

Originally Posted by jugernot

How much horsepower will I get from this engine?

327 Large Journal Block .40 over
Steal Crank
TRW forged pistons 9.96 comp ratio
Speed Pro Moly rings
Michigan 77 rod and main bearing
Edelbrock Proformer RPM cam and intake
Pete Jackson noise gear drive
World Torquer Heads
Manley Swirl polishied 2.02/1.60 valves
67cc combustion chamber
3/8 studs
Comp Cam roller tip rockers and lifters
Edelbrock 750 cfm carb.
350 turbo street/street transmissions

jugernot · 02-17-2005, 11:33 PM

The cam is a edelbrook performer rpm

.500 lift intake 221 cfm / exhaust 166 cfm
.400 lift intake 205 cfm / exhaust 156 cfm

SweetandLong68 · 02-17-2005, 11:45 PM

Quote:

Originally Posted by jugernot

The cam is a edelbrook performer rpm

.500 lift intake 221 cfm / exhaust 166 cfm
.400 lift intake 205 cfm / exhaust 156 cfm

Post the specs of the cam. Edelbrock makes alot of cams.

lata
CHRIS

jugernot · 02-17-2005, 11:50 PM

Basic Operating RPM Range: 1,500-6,500 RPM
Intake Duration 050 inch Lift: 234
Exhaust Duration 050 inch Lift: 244
Duration at 050 inch Lift: 234 int./244 exh.
Advertised Intake Duration: 308
Advertised Exhaust Duration: 318
Advertised Duration: 308 int./318 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.510
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.510 exh. lift
Lobe Separation (degrees): 112

jugernot · 02-18-2005, 12:47 AM

ttt

SweetandLong68 · 02-18-2005, 01:29 AM

Just a guess. Since I am not familar with your heads and how they flow and whatnot. But I would say it would easily make 375hp? Maybe more?

Would be a nicely stout engine most definetly. If you chose a different cam I think you could make more power. But if you are decided on the cam or already have it then that will have to do. My choice would be a Comp Cams Magnum 280H with .480 lift. That one works REAL good in my buddys Camaro that we built. Of course it is a 355, but never the less the power would be pretty similar. Camaro does 7.20s in the 1/8th now. VERY stout small block!

Check it out...

lata
CHRIS

SweetandLong68 · 02-18-2005, 01:31 AM

Just curious...But what rods are you going to use? If you are using some good rods you might be able to go with a larger cam and use that Upper RPM potential of the 327. Say something that goes from 2500-7500 rpm!??!

lata
CHRIS

jugernot · 02-18-2005, 01:37 AM

Thanks for the info, I was hoping for about 350 horsepower and changing a cam is not a big deal.

Quote:

Originally Posted by SweetandLong68

Just curious...But what rods are you going to use? If you are using some good rods you might be able to go with a larger cam and use that Upper RPM potential of the 327. Say something that goes from 2500-7500 rpm!??!

lata
CHRIS

Chevy Muscle · 02-18-2005, 10:40 AM

I can't figure out how a piston manufacture can list a compression ratio with a given piston while not knowing what combustion chamber the heads are, if the block's been 0-decked, and what head gasket you're using.

SweetandLong68 · 02-21-2005, 09:58 PM

Quote:

Originally Posted by Chevy Muscle

I can't figure out how a piston manufacture can list a compression ratio with a given piston while not knowing what combustion chamber the heads are, if the block's been 0-decked, and what head gasket you're using.

Hehe I hear your pain on this one...I take their compression ratio pretty much with a grain of salt. It gives you a general idea but not an EXACT ratio.

Ballpark

lata
CHRIS

02-17-2005, 10:21 PM	#1
jugernot Life, Be In It..... Join Date: Oct 2003 Location: Novato, California Posts: 1,498	How much horsepower will I get????? How much horsepower will I get from this engine? 327 Large Journal Block .40 over Steal Crank TRW forged pistons 9.96 comp ratio Speed Pro Moly rings Michigan 77 rod and main bearing Edelbrock Proformer RPM cam and intake Pete Jackson noise gear drive World Torquer Heads Manley Swirl polishied 2.02/1.60 valves 67cc combustion chamber 3/8 studs Comp Cam roller tip rockers and lifters Edelbrock 750 cfm carb. 350 turbo street/street transmissions __________________ Project Name: LEMON DROP. Reconstruction started "December 2000". Projected completion date "Who knows" http://67-72chevytrucks.com/vboard/s...d.php?t=200082

02-17-2005, 10:41 PM	#2
Dean23 68cst_ss490 Join Date: May 2001 Location: edmonton,canada Posts: 1,363	I got about 410 horse at 5500 rpm and 424 ft/lbs at 4500 rpm __________________ Dean edmonton,canada a winter wonderland 2005 Chevrolet Avalanche LT cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers. http://www.cardomain.com/ride/3090973

02-17-2005, 11:33 PM	#4
jugernot Life, Be In It..... Join Date: Oct 2003 Location: Novato, California Posts: 1,498	The cam is a edelbrook performer rpm .500 lift intake 221 cfm / exhaust 166 cfm .400 lift intake 205 cfm / exhaust 156 cfm __________________ Project Name: LEMON DROP. Reconstruction started "December 2000". Projected completion date "Who knows" http://67-72chevytrucks.com/vboard/s...d.php?t=200082

02-17-2005, 11:50 PM	#6
jugernot Life, Be In It..... Join Date: Oct 2003 Location: Novato, California Posts: 1,498	Basic Operating RPM Range: 1,500-6,500 RPM Intake Duration 050 inch Lift: 234 Exhaust Duration 050 inch Lift: 244 Duration at 050 inch Lift: 234 int./244 exh. Advertised Intake Duration: 308 Advertised Exhaust Duration: 318 Advertised Duration: 308 int./318 exh. Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.510 Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.510 exh. lift Lobe Separation (degrees): 112 __________________ Project Name: LEMON DROP. Reconstruction started "December 2000". Projected completion date "Who knows" http://67-72chevytrucks.com/vboard/s...d.php?t=200082

02-18-2005, 12:47 AM	#7
jugernot Life, Be In It..... Join Date: Oct 2003 Location: Novato, California Posts: 1,498	ttt __________________ Project Name: LEMON DROP. Reconstruction started "December 2000". Projected completion date "Who knows" http://67-72chevytrucks.com/vboard/s...d.php?t=200082

02-18-2005, 01:29 AM	#8
SweetandLong68 Your UncleBen Join Date: Dec 2002 Location: Indian Trail, NC Posts: 590	Just a guess. Since I am not familar with your heads and how they flow and whatnot. But I would say it would easily make 375hp? Maybe more? Would be a nicely stout engine most definetly. If you chose a different cam I think you could make more power. But if you are decided on the cam or already have it then that will have to do. My choice would be a Comp Cams Magnum 280H with .480 lift. That one works REAL good in my buddys Camaro that we built. Of course it is a 355, but never the less the power would be pretty similar. Camaro does 7.20s in the 1/8th now. VERY stout small block! Check it out... lata CHRIS Attached Images __________________ 68 C10 shortbed -- Street/Strip

02-18-2005, 01:31 AM	#9
SweetandLong68 Your UncleBen Join Date: Dec 2002 Location: Indian Trail, NC Posts: 590	Just curious...But what rods are you going to use? If you are using some good rods you might be able to go with a larger cam and use that Upper RPM potential of the 327. Say something that goes from 2500-7500 rpm!??! lata CHRIS __________________ 68 C10 shortbed -- Street/Strip

02-18-2005, 10:40 AM	#11
Chevy Muscle < 69 Blazer Join Date: Mar 2004 Location: Nevada, TX Posts: 292	I can't figure out how a piston manufacture can list a compression ratio with a given piston while not knowing what combustion chamber the heads are, if the block's been 0-decked, and what head gasket you're using.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.