Summit Racing® Classic Camshafts SUM-1103

This can may be a bit too much for a basic stock motor.
Look over Summit cams and step down 1 or 2 part numbers and you may be ok.
The motor I have the cam in question is bored 30 over, balanced, good flowing cast iron Sportsmen heads, good Victor Jr aluminum intake, 28,000 yo 32,000 stall converter and vacuum canister.

CHARLES from MS answered on October 23, 2017

Yes this cam will work! I had it in my 350 with stock bottom end and heads.

HUDSON from WA answered on October 15, 2017

YOU WILL NEED NEW LIFTERS,TIMING COVER, WATER PUMP GASKET,AND FRONT SEAL AND MAYBE A BALENCER HUB SLEVE.NEW DOUBLE ROLLER TIMING CHAIN. LUCAS OR COMP CAM ZINK PHOSPERUS OIL ADDITIVE. PLUS CLEVITE BEARING GUARD ON ALL CAM LOBES AND LIFTER BOTTOMS. FRESH OIL CHANGE WITH WIX FILTER. INTAKE GASKET SET, VALVE COVER GASKETS, ADJUST LIFTERS 1/2 TURN DOWN FROM ZERO LASH

HERBERT L from WA answered on October 14, 2017

I put this cam (SUM1103) in my 350 crate engine and it has good low and mid range power - good idle - very little vacuum loss - good overall cam ....

BOB from WA answered on October 21, 2017

I WOULD USE A SUMMIT 1103 CAM IT IS A GOOD STREET CAM AND YOU CAN USE YOUR STOCK TORQUE CONVERTER THE CAM YOU ARE LOOKING AT HAS TOO MUCH DURATION IN MY OPINION

MICHEAL from PA answered on October 23, 2017

I would change the springs on it just because of milidge on stock springs. just for reassures.

JERNEIL from SC answered on October 16, 2017

This cam would work fine with your 400. I put it in my 327 bored .060 over and it pulls great and I used stock springs. Friends told me to use Z28 springs but 3 months in and no problems. Nice sound. It is right at the limit for a stock converter if your running an auto.

RANDY from ID answered on October 15, 2017

This cam is good for mid to high rpm power, I put it in the 350 on my k20 that is used mostly as a wood truck and worked very well for that application, I would see it doing well in a 400 with intake and exhaust. You will need new lifters, all 16 of them. Intake manifold gaskets, timing cover gasket, and I removed my water pump as well. A break in additive will also be required.

ALEXANDER from OR answered on October 14, 2017

Yes, this cam will work very well in your 400. It will be very mild and the intake you have is matchet to it nicely

PATRICK from NY answered on October 15, 2017

You didn't say if you have stick or automatic. This is a mild cam but still has a nice sound and mid range power. With automatic and stock converter it's about as much cam as you can use.

BRUCE M from NY answered on October 25, 2017

Camshaft Manufacturers Description:
Fair idle, low midrange torque/horsepower, works well in 327 and higher c.i.d. engines. Largest camshaft with stock converter.

FORREST from TX answered on October 18, 2017

Yes, very well. Use this cam a lot. Has a nice idle manners to it.

ALAN K from ID answered on October 05, 2017

I'm sure it would work. Weather it would be the optimum cam for your application, I don't know. I put mine in a .30 over 327 but I haven't got it running yet. Good luck.

EMERSON from CA answered on June 28, 2017

It should but I would check valve to piston clearances before final assembly.

SEAN M from OR answered on June 28, 2017

Yes it will fit a 327 but a 350 has more area so the performance i would think would be a little better be sure to use the proper cam lube! Very important.

RONNIE from CO answered on June 28, 2017

If you want to do it right. You'll have to take into consideration the transmission torque converter if automatic, the rear end gear ratio,tire size and how you plan to use your vehicle.
Yes it will work but not as well as it was designed for the 327.
You don't want the cam pushing on the converter if it's a stock converter. You might need to get a little higher stall. The power band will come on at slightly different RPMS than the 327. Best is to get a cam designed for the 283 with the expected numbers you want considering all things mentioned above.

from OR answered on July 04, 2017

Yes it should physically work assuming your valve train is up to it. But i have had this cam in a few 350s and I like them with a 2k stall so my geuss us in a 285 ci motor your gunna need at least a 2500 or better to make it agreeable

BRANDON from TX answered on July 04, 2017

Yes Will be just fine if the rest of the engine is up to pare.

ALAN K from ID answered on July 11, 2017

I have this cam in my 305 and it's probably on the big side, definitely a lopey idle. I would recommend the summit 1102.

JOHN from CA answered on July 01, 2017

I have a 283 with 305 HO heads and it runs like a beast. 305 heads are perfect for a 283, they have the same combustion chamber size as 283 heads 58cc which will maintain optimum compression ratio but with the largest valves you want to run on a stock bore (283-heads 1.74/1.5 vs. 305HO heads-1.87/1.5) 350 heads have 64cc which will lower your compression ratio with 1.94/1.5 valves.

I've done a lot of research on this because I am building my engine up to run turbos with 8-10lbs of boost (stock 283 lower end can withstand up to 20lbs according to my research)

Back to this set up, I have a stock lower end which on about half of 283s is forged (forged has a solid harmonic balancer) with this cam, edelbrock performed intake and summit 750 carb going through a 2 speed powerglide and 4.10 rear in my 53 international ratrod (Instagram Dirtygertietheratrod) It's not the best off the line but after the first 60' she's quick. This cam give the 283 a nice lope and enough vacuum for the brake booster (the brake is a little stiff at idle but they work)

ANDREW from PA answered on March 25, 2018

I would put in if I was building a 283 .I also typed In 283 and that's the cam that came up .I am putting in a 350 .

TODD from PA answered on June 28, 2017

It's the biggest you want go in a 305, but I would bore it out flattop pistols for more compression

DALLAS from NV answered on January 23, 2018

It's the biggest you want go in a 305, but I would bore it out flattop pistons for more compression

DALLAS from NV answered on January 23, 2018

It would be a good cam it's not too radical more on the mild side

LLOYD from MI answered on January 18, 2018

It's hard to say because I don't know how you intend to use your 305. I put it in a 327 and it is a nice cam but not radical by any means.

JASON from MD answered on January 24, 2018

Nope great cam

JERRY from FL answered on January 23, 2018

Unless the 305 has very good compression, good flowing heads and intake matched with the car. Yes, it's too much can or the 305

JAMES from AL answered on February 13, 2018

No, it will just enough. It will have just a small hint of a lope, but will not need a stall converter, if running automatic trans. I installed in a 283, and it's great.

MIKE from GA answered on January 22, 2018

Yes

MIKE from GA answered on June 23, 2017

Yes.

WILLIAM J from DE answered on June 25, 2017

I have not used this particular cam but I believe all cams for small block chev engines have a fuel pump lobe, and that cam would work for a mechanical fuel pump.

DONALD D from CA answered on June 26, 2017

Yes

from VA answered on July 01, 2017

Yes.

ROBERT from VA answered on June 22, 2017

yes

ROY J from TN answered on June 21, 2017

Yes, I'm running it with a Carter muscle car mechanical fuel pump.

MARK from TX answered on June 22, 2017