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Old 08-05-2010, 08:34 PM
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350 head options

k i recently purchasd a 350 out of a 89 sierra its a tpi engine with the factory swirl port 193 heads i also have a 305 in my nova currently with 434 casting heads i know they both suck and im workin on getting a set of camel humps but i want to get the motor in the car its been rebuilt and ready to go i was wonderin if i should stick with the factory heads or switch to the 305 heads for ease of installation seeing as how i would need to drill out the 4brl intake to work with the factory heads just want to get my back on the road quickly i can always change heads after i have the new ones worked over thanx

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Old 08-05-2010, 08:47 PM
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Quote:
Originally Posted by madnov73
seeing as how i would need to drill out the 4brl intake to work with the factory heads
I hope this makes sense to someone who can help you. It makes no sense to me.
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Old 08-05-2010, 10:10 PM
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NO, tech, it's pretty garbled. Not only that but it is the ubiquitous 305 head on a 350 question. AGAIN.
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Old 08-05-2010, 10:19 PM
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the 89 350 he has has the center bolt valve cover heads which have the different angle bolts in the center of the intake. What he is saying is he has an older engine with all the intake bolts at the same angle. The intake that he has is for the older style which would require him ablonging the holes in the intake to fit the center bolt valve cover heads

if he uses the 350 heads he will have to oblong the holes in the intake if he uses the 305 heads he will not have to do this.

You need to consider compression ratio here, the 305 heads are probably a 58cc head and the 350 heads are a 64cc head.
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Old 08-05-2010, 10:35 PM
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Quote:
Originally Posted by crussell85
if he uses the 350 heads he will have to oblong the holes in the intake if he uses the 305 heads he will not have to do this.
Thank You.
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Old 08-06-2010, 02:39 AM
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Quote:
Originally Posted by madnov73
k i recently purchasd a 350 out of a 89 sierra its a tpi engine with the factory swirl port 193 heads i also have a 305 in my nova currently with 434 casting heads i know they both suck and im workin on getting a set of camel humps but i want to get the motor in the car its been rebuilt and ready to go i was wonderin if i should stick with the factory heads or switch to the 305 heads for ease of installation seeing as how i would need to drill out the 4brl intake to work with the factory heads just want to get my back on the road quickly i can always change heads after i have the new ones worked over thanx
If time is important, just oblong the holes in the intake and find or make the angled "washers" to mate the different algled bolts to the head.
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Old 08-06-2010, 03:21 AM
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Why does everyone want camel hump heads ?
Isīnt it better to go to an up to date aftermarket head ?
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Old 08-06-2010, 07:04 AM
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Quote:
Originally Posted by malc
Why does everyone want camel hump heads ?
Isīnt it better to go to an up to date aftermarket head ?
IMO, most guys generally don't want fulie heads- at least nothing like before the Vortec heads became available for a pittance.

Between the Vortec's and the cheap off-shore aluminum heads, fulies are further down the list than ever, unless it's a restoration.

Bad news for the guys who were hoarding double hump heads for decades, good news for those who know how to extract good power from them.
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Old 08-06-2010, 08:30 AM
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sry guys for being so umbled in my words and the reason im going with camel humps is i can get them cheap 100 which is why i need them reworked first and the 434 heads ar 62 cc 1.72in 1.5 ex compression is my main concern (yes ive read other posts about 305's on 350's) i dont care about performance with these heads i know i wint get what i want out of them im lookin for a easy solution to a basic problem. what i was wonderin is should i use a thicker head gasket like a .042 if i use the 305 heads to bring compression down in order save my mpg's or just stick with the 350 heads
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Old 08-06-2010, 10:30 AM
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350 head options

madnov73
as doc would have said, your basic problem is spelling, try the spell check at the bottom of the message mode. thanks
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Old 08-06-2010, 11:36 AM
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Quote:
Originally Posted by lanier ledford
madnov73
as doc would have said, your basic problem is spelling, try the spell check at the bottom of the message mode. thanks
i didn't know spelling was graded... if so it sucks for me ill just take the f...
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Old 08-06-2010, 11:43 AM
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Originally Posted by 27 t
i didn't know spelling was graded... if so it sucks for me ill just take the f...
if clicking a button is too hard I can't imagine anything of quality coming out of your garage.
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Old 08-06-2010, 01:54 PM
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wow if had known all you guys cared about was spelling i might have tried harder im glad i learned that this is a place of criticism you probably dont like me cause im a noob and dont care about my spelling but i dont like u cause you're an a** i'll just look for another forum that actually helps people thanx to those who have helped
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Old 08-06-2010, 02:08 PM
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Okay Im still a N00B at a lot of things; However, I plow through probably 80 emails a day and its frustrating to get someone who uses no punctuation, or capitalizes every word...or just plain can't spell. We're trying to help, but make our job a little easier please. My suggestion? 64cc vortec heads and an edelbrock etc vortec TPI base. check 3rdgen.org for used ones. I would also take the time with a die grinder and open up the upper plenum and open the upper plenum ports to match the runners if necessary.

you could get 88 and later corvette aluminum tpi heads, but you need the vette egr setup (its on the back of the vette tpi manifold)

If you want earlier heads...Dart IK180s are nice or the old standby iron eagles still get the job done. I still argue with my dad about "fuelie heads" He insists the cost of quality valves and aluminum heads doesnt outweigh the supposed intrinsic power of these 50yr old mythical junkers. ::shrug:: for a street car or a truck who cares either way. Make it work well.
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Old 08-06-2010, 02:14 PM
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1.21 giga-watts???!!!!
 
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And once again a product of our modern education system and parents that just didn't give a damn whether their kid got good grades in school has left the building because nobody could understand his pathetic attempts at communicating with his fellow human beings. Gosh! I feel so bad about it.
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