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Engine size vs. power by 85fieroguy
Started on: 09-20-2015 12:58 PM
Replies: 206 (1974 views)
Last post by: dobey on 10-02-2015 10:03 PM
engine man
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Report this Post09-29-2015 10:19 PM Click Here to See the Profile for engine manClick Here to Email engine manSend a Private Message to engine manEdit/Delete MessageReply w/QuoteDirect Link to This Post
I have not played with the 3.4 iron head engine if that is what you are talking about i think the ports of the iron heads are mor the problem from what i have read and not so much the valve size if your going to go with a 60 degree engine go with 3500 or the 3900 way better heads for power
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Report this Post09-29-2015 10:36 PM Click Here to See the Profile for SilvertownClick Here to Email SilvertownSend a Private Message to SilvertownEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by engine man:

I have not played with the 3.4 iron head engine if that is what you are talking about i think the ports of the iron heads are mor the problem from what i have read and not so much the valve size if your going to go with a 60 degree engine go with 3500 or the 3900 way better heads for power


Will they bolt up to the 3.4? I still want to go roller. I want to use the fiero intake.

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engine man
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Report this Post09-30-2015 08:16 AM Click Here to See the Profile for engine manClick Here to Email engine manSend a Private Message to engine manEdit/Delete MessageReply w/QuoteDirect Link to This Post
the 3500 and 3900 both have roller cams as far as i know or the 3400 but not the 3.4 Camaro engine
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dobey
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Report this Post09-30-2015 10:29 AM Click Here to See the Profile for dobeySend a Private Message to dobeyEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by engine man:

the 3500 and 3900 both have roller cams as far as i know or the 3400 but not the 3.4 Camaro engine


Yes. The 3x00 are roller cam blocks. The Camaro 3.4 is the same as the Fiero 2.8. Has the same cam and heads I think.
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rogergarrison
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Report this Post10-02-2015 06:39 PM Click Here to See the Profile for rogergarrisonClick Here to Email rogergarrisonSend a Private Message to rogergarrisonEdit/Delete MessageReply w/QuoteDirect Link to This Post
Seems like a good place to ask. A friend cracked a head on his S10 with 4.3. He cant find one locally, will a 3.4 head fit ?
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engine man
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Report this Post10-02-2015 09:29 PM Click Here to See the Profile for engine manClick Here to Email engine manSend a Private Message to engine manEdit/Delete MessageReply w/QuoteDirect Link to This Post
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dobey
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Report this Post10-02-2015 10:03 PM Click Here to See the Profile for dobeySend a Private Message to dobeyEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by rogergarrison:

Seems like a good place to ask. A friend cracked a head on his S10 with 4.3. He cant find one locally, will a 3.4 head fit ?


No. 4.3 is 90 degree small block based engine. 60 degree heads won't fit on it. 3800 is a different design, so they won't work either.
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