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Username Post: 402 BBC heads        (Topic#343515)
Chevelless70 
Forum Newbie
Posts: 16

Loc: Somerset MA
Reg: 03-23-17
03-23-17 11:21 AM - Post#2682957    

Are the edlebrock 100cc heads to big for a 402 BBC .040 over
Concerned about Intake runner size 290
Here's my combo
750 hp Holley carb
Edlebrock performer rpm intake
Right now 4290 factory heads 2.06/1.72 oval
Kb 160 .040 pistons 9.7 compression
Edlebrock cam 5.60/5.73
Hooker super comp headersl
Exhaust 2.5 with h pipe
Fluid harmionic balancer

Thank you for any imput



 


grumpyvette 
Senior Chevytalk Moderator -- Performance Subject Matter Expert --
Posts: 17510
grumpyvette
Age: 72
Loc: FLORIDA USA
Reg: 03-16-01
03-23-17 06:59 PM - Post#2683030    
    In response to Chevelless70

no! from experience on several 396-402 engines I can assure you the edelbrock heads, DO tend to increase power, as the heads flow slightly better , than the OEM heads unless those OEM heads are ported.
that being stated Id look at the cost of the heads and look at a 4" stroke 454 crank and new pistons to compare. the cost vs benefits
Details for 3964290

Casting Number 3964290
Added to Site 2010-12-25 18:03:33 (2280 days ago)
Manufacturer Chevrolet
Category Cylinder Heads
Type Big Block V8
Date 1969-1970
Notes oval port, closed chamber, 396, 402, 427, 454, 101cc chambers

http://garage.grumpysperformance.com/index.php?thr...

http://garage.grumpysperformance.com/index.php?thr...

http://garage.grumpysperformance.com/index.php?thr...

http://www.maliburacing.com/patrick_budd_article.h...



IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!


Edited by grumpyvette on 03-23-17 07:01 PM. Reason for edit: No reason given.

 
Chevelless70 
Forum Newbie
Posts: 16

Loc: Somerset MA
Reg: 03-23-17
03-24-17 11:52 AM - Post#2683094    
    In response to grumpyvette

Thanks grumpy!
I will certainly look into that.



 


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