I know the basics of breaking in a motor, but not all. Could u possibly describe what exactly do i have to do once the motor is put together, im running an Accel Cam, t-5 5speed modded 305 TPI which has been rebuild check sig. After i first start it up is it true i have to change the oil, Do i have to keep the motor at 2000 rpm for 30 minutes to break in the cam????? What exactly has to be done once the motor is about to be started to get an excellent break in???? Please state any information u have even if its a thousand pages long. thanx in advance

 

I didn't think you had to break in the cam for that long. When I did a cam swap in my 305 I believe my brother let it run for like 10 mins at above idle.

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"Rice burners are like tampons...Every pu$$y has to have one"
'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
3" Hooker CatBack w/Aero Chamber muffler
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
3:73 Posi
Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite

 

Yes, you should change the oil have a short period, when I swapped the cam I changed it after the break in before I started the car again. When I got my new motor I changed the oil about 200 miles after break in.

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"Rice burners are like tampons...Every pu$$y has to have one"
'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
3" Hooker CatBack w/Aero Chamber muffler
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
3:73 Posi
Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite

 

Check out the beck racing engines webpage for a very detailed break-in procedure. However, I don't think the 30-minutes at 2000-2500RPM applies for roller cams. Good luck.

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1990 IROC 350
Mods: Too busy trying to make it run right to mod it.
Airfoil, Dynomax cat-back, MSD coil, 180 t-stat, Bald Eagle tires,
Hypertech fan switch, Accel 23# injectors, Holley module, ported plenum,
Ported Daytona Yellow stock base, Moroso valve covers, other stuff,
Streetdampr, Ruger P95DC, hot wife, new oil filter, !cats, !TBC, !AIR.
18.0 @ 85MPH since I'm one big-a$$ MF
"It's better to have and not need than to need and not have."

 

i run mine above 1000 and below 2000 rpm for around 30 minutes, check for leaks, set timeing and anything else that needs done. then change oil and filter, i use straight 30 for first 1000 miles or so. the cam break in is to allow the lifters to rotate on the lobes, this doesn't apply to rollers. it's good to allow the engine to heat up and cool down several times, i don't like to drive a new engine for an extended period of time at first, 30 minutes at most for several heat/cool cycles.

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ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM

 

Are we talking just a cam or a entire new engine?
If its just the cam I let it run on high idle for 15/ 20 minutes 1500 rpm. Then if nessasary I re adjust the lifters and change the filter add a quart and dump the oil in 200 miles.
If its an engine same 15/20 minuets then adjust lifters then drive 100 miles keeping it under 2500rpm then change the oil and filter. After 400 more miles under 3000 rpm I cange oil and filter again.
SSC