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does the new 302 boss block use canted heads?

  • Thread starter Thread starter streetyme
  • Start date Start date Jan 30, 2010

streetyme

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Feb 3, 2007
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Jan 30, 2010
#1
  • Jan 30, 2010
  • #1
I was looking at the new boss 302 short block, and was told they use the old canted calve ( Cleveland) style heads... I was hoping to put either 185 or 205 AFR ; which I know or a inline style head.... any advice would be greatly appreciated..
 

giddyup306

Founding Member
Oct 22, 2002
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59
Jan 30, 2010
#2
  • Jan 30, 2010
  • #2
The cleveland heads actually came from the BOSS 302's design. I have Performer RPM heads on my 69-70 BOSS block. It's in my avitar.
 
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347HO

Member
Jan 13, 2008
462
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Seattle
Jan 30, 2010
#3
  • Jan 30, 2010
  • #3
You must use pistons specific to the C302/C3 or aftermarket Cleveland heads.
 

giddyup306

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Oct 22, 2002
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Jan 30, 2010
#4
  • Jan 30, 2010
  • #4
347HO said:
You must use pistons specific to the C302/C3 or aftermarket Cleveland heads.
Click to expand...
No you don't. I had extra coolant passages drilled to fit my #6025's. And I just used regular Probe 347 pistons.
 
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347HO

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Jan 13, 2008
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Jan 31, 2010
#5
  • Jan 31, 2010
  • #5
giddyup306 said:
No you don't. I had extra coolant passages drilled to fit my #6025's. And I just used regular Probe 347 pistons.
Click to expand...

I see... and what is your CR and piston to deck measurement?
 

giddyup306

Founding Member
Oct 22, 2002
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Jan 31, 2010
#6
  • Jan 31, 2010
  • #6
347HO said:
I see... and what is your CR and piston to deck measurement?
Click to expand...

CR is 11:1 and the pistons are flush with the deck.
 
3

347HO

Member
Jan 13, 2008
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Feb 1, 2010
#7
  • Feb 1, 2010
  • #7
giddyup306 said:
CR is 11:1 and the pistons are flush with the deck.
Click to expand...
I find that slightly difficult.
What is your average cc for the combustion chambers?
I am assuming these are 4v closed chambers since there's no way in hell you're gonna get 11:1 from the open chambers.

Just to be clear here... we are talking about "canted" valve Cleveland, not the C3 yates.
 

giddyup306

Founding Member
Oct 22, 2002
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Feb 1, 2010
#8
  • Feb 1, 2010
  • #8
347HO said:
I find that slightly difficult.
What is your average cc for the combustion chambers?
Click to expand...
I don't remember. I built the engine 7 years ago.


347HO said:
I am assuming these are 4v closed chambers since there's no way in hell you're gonna get 11:1 from the open chambers. Just to be clear here... we are talking about "canted" valve Cleveland, not the C3 yates.
Click to expand...

I'm talking about Edelbrock heads.
 

Rick 91GT

Mustang Master
Nov 29, 1999
9,692
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PA
Feb 1, 2010
#9
  • Feb 1, 2010
  • #9
From what I can tell the BOSS 302 block based shortblocks have reliefs cut for the INLINE head, not a Cleveland style CANTED valve....that would be a very odd option.

This means you can run any of the standard inline valve heads, AFR, Edelbrock, Brodix, etc...even the TFS TW design with limted lift/duration.
 

streetyme

New Member
Feb 3, 2007
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Feb 1, 2010
#10
  • Feb 1, 2010
  • #10
Thanks that what I needed to know...
 
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