buying a new used engine

viperlocc · January 30th, 2009, 10:27 AM

tomorrow im going to go pick up a fully rebuilt 306. has 300 miles on it. he said it has a HO cam but doesnt know the specs so i dont know if its from an HO motor or a cam that is better than stock. but of course, ive got some questions:

Im gonna transfer my cam from my old motor to my new motor and use the same pushrods in the same location as they were in the old motor. heads will be transfered over too once they are back from the shop. Do i have to re-break the cam in (sit their for 15 min at 2000 rpms)?

the engine sat for the winter season in a garage. when i pull the heads ill dump a little oil in the pistons and hand crank it over a couple times. is this a good idea?

what are things i should look for when picking up this engine?

93mustank · January 30th, 2009, 10:35 AM

No need to put the push rods in order.....no break in time on the cam.

viperlocc · January 30th, 2009, 11:16 AM

Originally Posted by 93mustank

No need to put the push rods in order.....no break in time on the cam.

are you sure? when i removed the heads, my haynes manual said to mark them in the order they came out so when i put them back in they go in the same spot i thought this was for any wear and tear. but i have roller rockers so i guess it doesnt matter seeing as ill be adjusting them...

i think i answered myself...lol

grnstang · January 30th, 2009, 12:04 PM

what cam and heads are you putting on the 306? and what heads are on the 306 now?

viperlocc · January 30th, 2009, 12:40 PM

stock heads as far as i know. the cam I have is a E303, and the heads are Windsor Jr.
heads are going to the shop to get cleaned up and check out, possibly a little machine work just to make it flow better, nothing to special.

grnstang · January 30th, 2009, 01:48 PM

scrap the E303 while your at it

trueblue01 · January 30th, 2009, 02:00 PM

No break in on roller cams. No particular reason to worry about push rod position as long as they are all in good condition. When I disassemble valve trains I usually do maintain part orientation but it sounds like your using some from here some from there so it won't matter they will be mixed up anyway.

M L Struck · January 30th, 2009, 02:05 PM

Originally Posted by trueblue01

No break in on roller cams. No particular reason to worry about push rod position as long as they are all in good condition. When I disassemble valve trains I usually do maintain part orientation but it sounds like your using some from here some from there so it won't matter they will be mixed up anyway.

+1

odds are you will be happy with the E cam, good low end power and they sound good

viperlocc · January 30th, 2009, 03:43 PM

thats all i want. not looking for big power yet. gonna stick money into the 351, just not sure what to with it yet.

i thought about a different cam, but when the cam was in the running 302, i like it. had the perfect sound and better than stock power.

January 30th, 2009, 10:27 AM	#1
viperlocc Regular 1985 Mustang GT Join Date: Oct 2008 Location: Stevens Point Posts: 316 iTrader: 0 reviews	buying a new used engine tomorrow im going to go pick up a fully rebuilt 306. has 300 miles on it. he said it has a HO cam but doesnt know the specs so i dont know if its from an HO motor or a cam that is better than stock. but of course, ive got some questions: Im gonna transfer my cam from my old motor to my new motor and use the same pushrods in the same location as they were in the old motor. heads will be transfered over too once they are back from the shop. Do i have to re-break the cam in (sit their for 15 min at 2000 rpms)? the engine sat for the winter season in a garage. when i pull the heads ill dump a little oil in the pistons and hand crank it over a couple times. is this a good idea? what are things i should look for when picking up this engine?

January 30th, 2009, 10:35 AM	#2
93mustank Banned Join Date: Aug 2008 Location: Phoenix,AZ Posts: 3,014 iTrader: 1 reviews	No need to put the push rods in order.....no break in time on the cam. __________________ PeteAndersonRacing.com

January 30th, 2009, 12:04 PM	#4
grnstang Hardcore Enthusiast 91 LX 13.7@101 Join Date: Oct 2008 Location: Norwalk OH Posts: 1,426 iTrader: 1 reviews	what cam and heads are you putting on the 306? and what heads are on the 306 now? __________________

January 30th, 2009, 01:48 PM	#6
grnstang Hardcore Enthusiast 91 LX 13.7@101 Join Date: Oct 2008 Location: Norwalk OH Posts: 1,426 iTrader: 1 reviews	scrap the E303 while your at it __________________

January 30th, 2009, 02:00 PM	#7
trueblue01 Enthusiast 1989 Mustang LX 10.98@126.7 NA Join Date: Feb 2008 Location: N.E. Ohio Posts: 698 iTrader: 0 reviews	No break in on roller cams. No particular reason to worry about push rod position as long as they are all in good condition. When I disassemble valve trains I usually do maintain part orientation but it sounds like your using some from here some from there so it won't matter they will be mixed up anyway. __________________ Never fast enough.

January 30th, 2009, 12:40 PM	#5
viperlocc Regular 1985 Mustang GT Join Date: Oct 2008 Location: Stevens Point Posts: 316 iTrader: 0 reviews	stock heads as far as i know. the cam I have is a E303, and the heads are Windsor Jr. heads are going to the shop to get cleaned up and check out, possibly a little machine work just to make it flow better, nothing to special.

January 30th, 2009, 03:43 PM	#9
viperlocc Regular 1985 Mustang GT Join Date: Oct 2008 Location: Stevens Point Posts: 316 iTrader: 0 reviews	thats all i want. not looking for big power yet. gonna stick money into the 351, just not sure what to with it yet. i thought about a different cam, but when the cam was in the running 302, i like it. had the perfect sound and better than stock power.

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