Search found 15 matches

by DRHEMI
Tue Oct 26, 2010 12:54 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Wanted: 3 inch stroke crankshaft for 331-354 chrysler !!!!!!
Replies: 2
Views: 5242

Re: Wanted: 3 inch stroke crankshaft for 331-354 chrysler !!

I believe you are going to discover what Gene Adams discovered back in the 1960s. Before Gene's astonishing nitro Desoto Jr. Fueler, he tried a destroked 354 (class rules mandated a 301 max, I believe). He gave up because he couldn't make enough compression, and that led to him exploring the smaller...
by DRHEMI
Tue Jun 08, 2010 2:46 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Heads..which would you do?
Replies: 14
Views: 9188

Re: Heads..which would you do?

Before history remembers the "Surfer" as some poor hicks who were successful inspite of their lack of knowledge, let me make one note. The Surfers were blessed with a real thinker in the fuel department. I can't remember his name, but he was the individual credited with coming up with &quo...
by DRHEMI
Wed May 26, 2010 11:45 am
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Pushrod checking
Replies: 11
Views: 7884

Re: Pushrod checking

Bigger valves should not be "of course longer". They should remain the same. Longer valves, even with shorter pushrods, throw off the rocker geometry. You can have all kinds of problems, such as the scuff pattern of the rocker's path across the valve tip. You might also find that the talle...
by DRHEMI
Tue Apr 13, 2010 12:32 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: 12-Pak Tunnel Ram fabrication
Replies: 3
Views: 2838

Re: 12-Pak Tunnel Ram fabrication

It gets expensive real quick, but using a Jerico belt drive distributor moves the distributor to a forward facing unit, clearing the intake manifold nicely. I will see if I have any photos which I could post. I discovered some years ago that vacuum secondaries are a challenge to get to work right on...
by DRHEMI
Mon Mar 22, 2010 10:35 am
Forum: Decode My Hemi
Topic: hemi? prototype? weird stuff here... need EXPERT HELP
Replies: 7
Views: 9579

Re: hemi? prototype? weird stuff here... need EXPERT HELP

1963 426 blocks were "T" marked on the ID pad on the front valley cover rail. Max wedges would have an additional mark of "MP", and if a factory installed block in a lightweight car, the mark of "HC" would also be found. The only max wedges with an "HP" mark w...
by DRHEMI
Mon Mar 15, 2010 6:33 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Tunnel rams for ported heads
Replies: 12
Views: 7401

Re: Tunnel rams for ported heads

I have the 1st mock up photos to share. I have found some areas which will need to be addressed. The fastener holes for our early hemis are located close to the edge of the ports, so close that a ported head's ports come close to these holes. Because these Nascar manifolds have outward splayed ports...
by DRHEMI
Thu Feb 25, 2010 5:50 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: THREE AFBs?
Replies: 6
Views: 5170

Re: THREE AFBs?

Some time back, one of the many Mopar magazines published a photo of a 426 Hemi superstock cross-ram manifold with mounting pads for 4 (Four) AFB carbs. It was from the mid-60s, an engineering exercise, I recall. Must not have tested well, for I don't ever recall seeing any mention of the manifold e...
by DRHEMI
Sat Feb 20, 2010 1:36 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Tunnel rams for ported heads
Replies: 12
Views: 7401

Re: Tunnel rams for ported heads

I have included pictures of the cast tunnel ram offered by M&M competition engines for both the GM and Mopar (P7) nascar heads. I don't believe that the clamping forces required to attach the manifold to our hemis is so strong as to warp the adapter. Of course, real world tests would be necessar...
by DRHEMI
Fri Feb 19, 2010 1:34 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Tunnel rams for ported heads
Replies: 12
Views: 7401

Re: Tunnel rams for ported heads

The adapter will have countersunk holes for machine capscrews to bolt the adapter to the heads. The manifold will bolt down to the heads to the already mounted adapter using the manifolds existing mounting holes for the manifold bolts. My intention is to use the Nascar manifolds without any machinin...
by DRHEMI
Fri Feb 19, 2010 12:50 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Tunnel rams for ported heads
Replies: 12
Views: 7401

Re: Tunnel rams for ported heads

The mocked up wood adapter will give me the critical measurements to be used on CNCing the aluminum pieces.
-Andy
by DRHEMI
Fri Feb 19, 2010 12:47 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Tunnel rams for ported heads
Replies: 12
Views: 7401

Re: Tunnel rams for ported heads

The manifold alongside the ported 331 head.
-Andy
by DRHEMI
Fri Feb 19, 2010 12:44 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Tunnel rams for ported heads
Replies: 12
Views: 7401

Re: Tunnel rams for ported heads

This is the Nascar Mopar P7 single 4 bbl manifold. Note that it is the restrictor type (look inside the carb base).
-Andy
by DRHEMI
Thu Feb 18, 2010 11:12 am
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Tunnel rams for ported heads
Replies: 12
Views: 7401

Tunnel rams for ported heads

Hello everyone, I have returned my attention back to my ongoing building of an unblown 354 racing engine for my FE dragster. As has been discussed in an earlier thread about PAW's tunnel ram, all of the available manifolds for the 354-392 hemis seem to be small port designs, meaning that a serious m...
by DRHEMI
Wed Jun 17, 2009 10:34 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Sealing girdle to block
Replies: 11
Views: 8209

Re: Sealing girdle to block

After all of these Hemis sitting (Literally) for decades in my garage, now something is happening! My friend with the Girdle question is building a 671 blown 354. The reason I suggested using a girdle is that we intend to purchase a Bryant crank to build him a stroker motor. With the increased throw...
by DRHEMI
Mon Jun 08, 2009 1:17 pm
Forum: (LEGACY) 331-354-392 HEMIs
Topic: Sealing girdle to block
Replies: 11
Views: 8209

Sealing girdle to block

Hi, this is my 1st posting.... I am assisting a friend build up a 354 671 supercharged Hemi. At my suggestion, he is going to use one of my top fuel girdles I have had for years. He asked me a question that I thought maybe someone out here might have some thoughts on. His question was how effective ...