Engine Quick Head Question

rd

Founding Member

Jan 12, 2000

3,316

63

109

Ocean Springs MS

Aug 10, 2012

#1

• Aug 10, 2012

• #1

Trying to get to my next engine. Have AFR185s waiting on a new shortblock, been thinking 331/347 for a couple years. However......

Will AFR 185's support a 351 based 408 if I decide to go that route?

 

MikeH686

Mine is only two inches though.

10 Year Member

Oct 11, 2011

2,843

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Waldorf, MD

Aug 10, 2012

#2

• Aug 10, 2012

• #2

whatre your plans with the car? high compression all motor or low compression turbo or blower? Nitrous?

 

rd

Founding Member

Jan 12, 2000

3,316

63

109

Ocean Springs MS

Aug 10, 2012

#3

• Aug 10, 2012

• #3

It will be run 90% NA for street and brackets, but will have the same small plate system I have (150) on it for fun occasions. 9.5 or better compression, 2500 or better converter, 4.10 gears, carged. Drag focused.

 

NIKwoaC

中國製造

15 Year Member

Oct 31, 2006

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Chengdu Province

Aug 10, 2012

#4

• Aug 10, 2012

• #4

IMHO, AFR 185s are small for a 408. You'll need a good induction and a healthy cam to keep a 408 from wheezing through those heads. That's not to say it couldn't be done.

 

MikeH686

Mine is only two inches though.

10 Year Member

Oct 11, 2011

2,843

1,753

184

Waldorf, MD

Aug 10, 2012

#5

• Aug 10, 2012

• #5

Afr 205 are a minimum in my opinion for all motor

 

rd

Founding Member

Jan 12, 2000

3,316

63

109

Ocean Springs MS

Aug 10, 2012

#6

• Aug 10, 2012

• #6

Thanks for the feedback. Probably stay 302 based, because of time and effort constraints in changing the other stuff to a 351 block.