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I was at a swap meet Sunday and a Mopar fanatic was moving out of state and sold MD a TON of new motor and chassis parts! In them was a brand new pair of 2" longer KYBs. Put them on yesterday and time permitting I will drive it today. Now I need an 8-71 or bigger to go on the blower manifold...

O typically run a 1" or 2" spacer from 4 hole to open and make the transition radius into the port start up inside the spacer. The 4 hole to open cnc spacers work well on most everything that I have tried. A big mistake many make is running too large of an intake. The air is accelerated in the...

Performer RPM. Those and the 440 source came In a package deal. The Speedmasters look much better by eye. I don't think the 440 source and perf rpm will flow much better than pocket ported 906s. We will see... TIMINATOR

I have 3 motors and 3 sets of heads. And a flow bench. And a dedicated porting room. Factory iron heads have a big hump in the floor and raising the top of the port gives a straighter shot to the bowl with a good flow gain Edelbock and 440 source (I have a pair of each) minimize the hump and the...

Not a test. Ported stock 440 heads gain about 28-34 cfm with this max wedge porting. You don't even need to widen them to get some gain. But stock heads have a big hook in them that aftermarket heads dont. But since I have performer rpm and raised runner speedmaster heads I was wondering if...

I have a set of aluminum heads that I will port and wondering if raising the top and widening the port to the big gasket size will gain much. Heads now only flow around 280 and I own two sets, a Chinese set and performer RPMs too. There is enough meat in two of the intakes I have to do this...

Well after some modifying I finally have the superstock springs in my 72 Challengrer. When I built the car for a customer back in the 90s, I forgot that I moved the rear springs inboard, and since they were moved farther than the kit spring setup, I had to cut and redo the superstock hangers...

MOPAR fans don't know how good they have it! I just sold my 1987 Turbo T Limited about a month ago. (Sept. 2025). I bought it in Dec. 2019 with a new but low quality rebuilt turbo, intercooled V-6. It seemed to be a lite resto, and I own an upper end machineshop, so I figured it to be done in a...

I modify (port) the oiling system on every engine I build. Then the cold/hot disparity is less and I can run a stock oil pump to higher RPM dropping pumping HP losses. Modifying oiling to me is EVERY passage intersection, pickup tube entry and exit, main cap on small blocks too. Cavitation and...

Like to see the plugs. Car weight, gear, convertor, exhaust. 12.90 seem slow. Have u run the new combo on the track yet? Not a fan of 6 pak. Short runners, disparity of velocities and mixture volume. Has the dist been curved or is it computerized? TIMINATOR

You are welcome! I designed some headers for Doug Thorley in the 90s. My shop extensively installed them on 4wds, tow vehicles, motor homes, and hi fuel milage vehicles, and still do occasionally. They are under represented in the street market due to cost and lack of advertising. TIMINATOR

Conventional headers have four individual tubes from the head flange to the collector. Tri Y headers have short (about 10")tubes from the flange to a Y, pairing two tubes to a larger tube about 20" long that then Ys together at the larger final collector. Doug Thorley was the most popular...

For bottom end, midrange and gas mileage tri Ys can't be beat. I have seen them for sale cheaper than OEM stuff. TIMINATOR

Not my bag. Econo for the wife. Smiles per miles for me... Last 2 cars ran hi 9s and lo 9s on pump gas. 72 Challenger should be hi 8s with P/S, P/B, A/C, PWR Windows, locks, and trunk release. TO EACH, HIS OWN THING! TIMINATOR

If you aren't really "looking for power", why post? Put anything cheap on it. Just askin' for a friend... TIMINATOR

Depends on what and where. Irontite tapered and threaded inserts are better. Start about 1/4" past the crack, drill, taper ream, tap, red loctite, and tighten until the tapered insert breaks off just above the surface. Then drill, tap, etc the next hole with about a third diameter overlap...

Back to why didn't yhe factory use "stroker specs". They built a block, figured out the largest cubic inches possible, then dropped the initial size down by 30 or 40% so they could make it bigger every few years as a sales gimmick! TIMINATOR

Actually they can be welded with a 200 amp D.C. WIRE WELDER! Heat a decently large area to just below a dull red, make a short pass less than an inch and a quarter and reheat the area around the weld, not the weld itself until its all that same color. Then weld some more and reheat. Repeat until...

They do and that's because the others are more cast grey iron (softer) and the mopars have more Nickel for strength and some tin to keep the iron more malleable and crack resistant. You can port 2 sets of sbford heads in the same time it takes to do one set of mopar heads! P.S. the last offset...

Ford 400 is poop because of the head design, limited years of sale and with big crank journals theres more rotating weight too. A 400 chebbie has a 4.125" bore and a 3.75" stroke. It also has a short 5.565" rod that is even shorter than the pathetic standard 5.7" regular chebbie unit. The...