Welcome, Guest. Please login or register.
October 22, 2018, 05:53:49 pm

Login with username, password and session length
435268 Posts in 37272 Topics by 9537 Members
Latest Member: Mgabski
Search: Advanced search
Advertiser Inquiries
+ My Community
|-+ Grass Roots Tech
| |-+ Grass Roots Small Block Windsor
| | |-+ Later 351-W intakes
0 Members and 1 Guest are viewing this topic. « previous next »
Pages: [1] Go Down Print
Author Topic: Later 351-W intakes  (Read 1446 times)
junkyardjeff
Small Block
***
Offline Offline

Posts: 176

Location: Dayton Ohio

« on: November 02, 2017, 09:53:39 pm »

Changing a 92 motor over to a carb and read that a earlier 351 intake has more bolt holes then the later and just what year did it happen,was wanting to put a 2 bbl intake on it so I could finally use my Holley 500 but do have a mid 80s truck 4 bbl intake but not really happy with those intakes. Every motor I had with that intake had carb icing issues and was wanting to use a early 70s 2 bbl intake.
Logged
dennis112
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 2348


Location: Amish Wonderland of Central Pa.

« Reply #1 on: November 03, 2017, 04:20:44 am »

A late 70's intake will bolt on your current heads just fine.

69/70 intakes (and heads) had 4 "extra" bolt holes. It shouldn't cause any interference if used on later years.  You'd just have holes that you won't be able to thread bolts into because the later heads weren't tapped for them.

Logged

Dennis

65' Stang, 434W NA, Victor Heads, Super Vic Intake, 11:1, Braswell Carb, Bullet SR Cam, G101A 4-Speed, 4:56 rear, 93 Octane Pump Gas  9.82@138.00
junkyardjeff
Small Block
***
Offline Offline

Posts: 176

Location: Dayton Ohio

« Reply #2 on: February 24, 2018, 07:49:38 pm »

Looking for 351 intake gaskets on Autozones website it looks like the heads lost the four bolts in 75.
Logged
junkyardjeff
Small Block
***
Offline Offline

Posts: 176

Location: Dayton Ohio

« Reply #3 on: February 24, 2018, 09:15:06 pm »

Just seen pictures of a 71 4 bbl intake and the holes not there,looks like a/z is wrong on the gaskets. It looks like the 71 intake could be drilled for the 4 other holes.
Logged
juiced coupe
Six figures worth of don't give a f*ck
Global Moderator
Big Block
*****
Offline Offline

Posts: 8394


Location: Pascagoula, MS
The land mass between New Orleans and Mobile


« Reply #4 on: February 24, 2018, 09:56:56 pm »

Felpro 90116 is the correct gasket for early 351Ws. It has 8 holes per side. It is also my go-to intake gasket for most applications, 6 or 8 bolt.

I have used 6 bolt intakes on 8 bolt heads several times without any problems.
Logged

Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
dennis112
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 2348


Location: Amish Wonderland of Central Pa.

« Reply #5 on: February 25, 2018, 06:56:58 am »

I have used 6 bolt intakes on 8 bolt heads several times without any problems.

+1.  

Using 6 bolt intakes on the 8 bolt heads is a non-issue-I have never had a problem doing it either.  Had 1 running example for over 18 years before I built the 393w with modern heads and intake.  It was a daily driver and was driven cross country and in the mountains of Colorado so it saw all kinds of usage. (I still have a mounted set of winter treads in the garage from those days.)
Logged

Dennis

65' Stang, 434W NA, Victor Heads, Super Vic Intake, 11:1, Braswell Carb, Bullet SR Cam, G101A 4-Speed, 4:56 rear, 93 Octane Pump Gas  9.82@138.00
junkyardjeff
Small Block
***
Offline Offline

Posts: 176

Location: Dayton Ohio

« Reply #6 on: February 25, 2018, 06:08:37 pm »

Autozone lists the 90166 as the gasket up to 74 and for 75 and up there is a different number,going to use a 70 intake on the later heads if I can not find a set of earlier heads.
Logged
Pages: [1] Go Up Print 
« previous next »
Jump to:  



Powered by MySQL Powered by PHP Valid XHTML 1.0! Valid CSS!
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines



408 Stroker