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Old 08-07-2011, 10:15 PM
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what cam to choose?? 305 chevy

hello guys im back again asking another questin, i was thinking lately since my 305 is on the motor stand,should i put a cam in it???? again its a stock motor never been rebuilt but runs good when pulled from the parts car or should i just leave it alone??

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Old 08-07-2011, 10:41 PM
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Going with a slightly larger cam can be beneficial. It can give you better mileage and power. If it takes a flat tappet cam, here`s the cam we recommend:
http://www.summitracing.com/parts/SUM-1102/
If it takes a hydraulic roller then I`d have to know what year.
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Old 08-07-2011, 10:52 PM
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its a 87-92 style block,center bolt valve covers
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Old 08-07-2011, 10:54 PM
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and would i be good by just installing a cam itself or do i have to get lifters and stuff like that??
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Old 08-08-2011, 11:35 AM
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Your engine could be a roller block then. Did it come out of a truck or a passenger car? Trucks came with flat tappets, cars came with roller tappets. How we could tell for sure would be by the suffix code which is on the block`s deck which is right behind the alternator. If it is in fact a roller block let me know, I can recommend a different cam. However your in luck if it is a roller engine. I have a roller cam that will be perfect for it and since you only live 35 miles from me we could meet and make the transaction. The cam I have has less than 2000 miles on it, and It`ll save you considerable money compared to buying a new one. Also if it`s a roller you can reuse the lifters you have.
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Old 08-08-2011, 06:56 PM
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The melling/sumit 1102 /performer 420/442 lift cam is highly recomended for use in any driven domestic V8. That cam has no loss in low end, the stock converter is hooking after the low end loss.

It is in my 85 305 C10, with 3.73 gears and 28" tires. The 85nlater 305 heads had 58 cc chambers giving them 9.2:1 compression. Those heads will enjoy the cam, welcoming the neck snapper lows with open arms.
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Old 08-08-2011, 10:05 PM
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Quote:
Originally Posted by DoubleVision
Your engine could be a roller block then. Did it come out of a truck or a passenger car? Trucks came with flat tappets, cars came with roller tappets. How we could tell for sure would be by the suffix code which is on the block`s deck which is right behind the alternator. If it is in fact a roller block let me know, I can recommend a different cam. However your in luck if it is a roller engine. I have a roller cam that will be perfect for it and since you only live 35 miles from me we could meet and make the transaction. The cam I have has less than 2000 miles on it, and It`ll save you considerable money compared to buying a new one. Also if it`s a roller you can reuse the lifters you have.
when i looked up the number thats on the back of the block it said it came in cars and trucks? let me get the numbers that i see and ill post it on here hope you can help me
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Old 08-09-2011, 07:19 AM
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Hey Hank, the numbers he is wanting are on "stamped" on a little pad on the front side of the block. It is on the passenger side. I was going to recommend the exact same Summit cam.
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Old 08-09-2011, 12:27 PM
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ok great im going to check when i get off work,i had to sneak and check the post lol so if i went summit cam mite as well get the summit double roller timming chain to match lol
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Old 08-21-2011, 10:15 PM
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havent had time to check the code on block,i will this week,but if i did get a slighty bigger cam or mild cam,i dont need have to go get the block bored out right?? how you know you need to get blocks bored? i know if you get a ful rebuild its a must right?
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Old 08-22-2011, 07:09 AM
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If the engine is in good shape and you just want to help it`s power out by adding a slightly bigger cam there`s no need for a rebuild.
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Old 08-22-2011, 12:08 PM
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ok great,so i mite get a cam but dont know what to get but ill get that block number so you guys could help me out,because im going to be buying most of these parts soon so i can hurry up and install the motor back into the car
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