427 Small Block
Pro
Joined: Oct 2009
Posts: 664
Likes: 89
From: Marysville Ohio
Very interesting thread for me because I want to build a Dart SHP 427 for my '77. SummitRacing says about the Milodon 30907: "Pan fits stock crossmember without modification when the correct Tall-Narrow frame and engine motor mounts are used. The Short-Wide mounts can not be used.". So you had no problem using the C3's short wide engine mounts?
Do you know if it could accommodate the Steeroids rack and pinion? Thanks much.
Do you know if it could accommodate the Steeroids rack and pinion? Thanks much.
Pro
Joined: Oct 2009
Posts: 664
Likes: 89
From: Marysville Ohio
Yes, 2-piece rear main, but I have a passenger side dipstick. For all I know, that could have changed in the last couple years.
Melting Slicks
Joined: Mar 2008
Posts: 2,666
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From: Spring Park MN
Mike
Safety Car
Joined: Jan 2009
Posts: 4,000
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From: New York
Thread Starter
Melting Slicks
Joined: Dec 2009
Posts: 3,229
Likes: 656
From: Thunder Bay
Sounds like that is the perfect combination for my car. Now for the details. What is the consensus on camshaft selection for a manual trans car with 3.55 gears? It sounds like my static compression ratio is going to come in at about 10.5:1. There's been a lot of discussion about dynamic compression ratios on this forum. What is the maximum dynamic compression I can expect to get away with running the crap that passes for 91 octane these days?
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Pro
Joined: Oct 2009
Posts: 664
Likes: 89
From: Marysville Ohio
I have a Dart SHP block, 2 piece main, passenger side dipstick. Everything I've read indicates this is how SHP blocks are configured, but I haven't researched that deeply.
Last edited by cooper9811; Jun 24, 2017 at 10:06 PM.
Supporting Vendor
Joined: Sep 2007
Posts: 164
Likes: 36
Sorry to hear about any issues you've had with springs. TFS uses only American made PAC springs on our heads and have for a while now. Please let me know if you have any questions. I'll be happy to answer. Regards, TrickFlowTech
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Hey trick flow can you pm me some info on the best 23 deg 220-230cc sbc head you have? cant find the specs from browsing
What about 18 degree offerings?
(for stout high rpm 383)
Back on topic....
What about 18 degree offerings?
(for stout high rpm 383)
Back on topic....
Supporting Vendor
Joined: Sep 2007
Posts: 164
Likes: 36
Sure thing. Our 230cc head comes with a 70cc chamber. It needs a -14cc piston to net 10.5:1. That's a standard head gasket and the piston .010 in the hole at tdc. The compression is pretty mild depending on how much you want to cam it. We have a couple different spring rate options, but I always like the Ti retainers.
We use a 2.080 in. valve. It flows 265@.400, 296@.500, 305@ .600 with the competition ports. Standard guide spacing, so standard rocker and pistons are fine. As a guideline, the Super Victor is a good match for the port size.
Let me know what you're thinking in terms of idle quality and cam.
We have the 250cc Ultra 18's as well. Very mean heads, but use standard 18 deg. intakes and exhaust patterns. Offset Shaft rockers and .180 offset intake lifters pretty standard as well.
We use a 2.080 in. valve. It flows 265@.400, 296@.500, 305@ .600 with the competition ports. Standard guide spacing, so standard rocker and pistons are fine. As a guideline, the Super Victor is a good match for the port size.
Let me know what you're thinking in terms of idle quality and cam.
We have the 250cc Ultra 18's as well. Very mean heads, but use standard 18 deg. intakes and exhaust patterns. Offset Shaft rockers and .180 offset intake lifters pretty standard as well.
Supporting Vendor
Joined: Sep 2007
Posts: 164
Likes: 36
If these are our 195's, there are some good porters such as Total Engine Airflow that can "run a program" through them. The castings are the same, and other than going with the bigger intake valves and freshened spring package, you can expect them to run right there with our bigger heads.