Are heads too big? - CorvetteForum - Chevrolet Corvette Forum Discussion

Other Cars Non-Corvette Content, Daily Drivers, Winter Beaters, Work Trucks, Tow Vehicles, for sale

Are heads too big?

Old 12-26-2018, 07:33 PM
Rodney Young
Junior Member
Thread Starter
Member Since: Oct 2018
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Default Are heads too big?

Hey guys I have a 385 short block ready for heads to be bolted on. Motor consists of 4340 rotating assembly. 6 in rods, je/srp 11:1 flat tops(with 64cc head) cam is a custom grind solid roller from Cam Motion and specs are as follows
246/252 @ 50
110 ls
23 valve lash
35-6500 rpm range.
Bottom end is studded.

Heads are eBay El cheapos
Aluminum 220cc runners with 64cc Chambers.
Flow #s seem a little "advertised" but here they are.
​​​ I E
@ 100- 68-53
@ 200- 143-112
@ 300- 196-163
@ 400- 244-199
@ 500- 262-226
@ 600- 299-239
As I said they seem a little high but thats just my opinion. Motor will be going in a Full interior/exterior 1985 Cutlass. My guess on weight would be around 3500 give or take. Transmission is a pretty stout th350 with 3500 stall converter with 411s out back. Car will be mainly driven on the weekends and an occasional trip to the track.

If you master techs have any input whatsoever please feel free to chime in. Thanks!
Rodney Young is offline  
Old 12-29-2018, 02:39 PM
CF Senior Member
NytmereZ's Avatar
Member Since: Jul 1999
Location: Chicago IL
Posts: 4,657
Thanked 35 Times in 27 Posts

Why skimp on one of the most important parts for a go fast motor, forget eBay(you get what you pay for) save your money and get a good set of heads, I prefer AFR
NytmereZ is offline  
Old 12-31-2018, 07:54 AM
CF Senior Member
Member Since: Oct 2004
Location: Valencia Ca.
Posts: 67,287
Thanked 1,041 Times in 956 Posts
St. Jude Donor '05

Im running 230cc Darts (after porting) on a solid roller 383, love it.
If you have plaenty of gear youll be fine. Makes adequate tq for most driving (dont want a burnout machine) pulls super hard upstairs
Ported single plane, 850 AED 4.11 26 in tire 6 spd

link to heads?

Last edited by cuisinartvette; 12-31-2018 at 07:55 AM.
cuisinartvette is offline  

Thread Tools
Search this Thread
Sponsored Ads
Vendor Directory

Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: