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thanks AndyF for posting. A good read. I asked a few questions, talked with owner of one of the leading shops that provides alot of respected info on this forum and others. The MRE rocker arms are made by HS, but they are not the same rocker as HS (HS w/o a shaft bearing). So the geometry...

For what???????????????????Read the TrickFlow data sheet that comes with the heads. If your rocker geometry mod is the magic carpet...do like the other leaders do on this forum....post a full presentation of the design and improved geometry, not just a couple of vague pics.

I never liked the half mood spacer idea either. At TrickFlow when they designed the heads, there were probably plenty of design iterations before they settled on a final geometry. The mid-lift rocker geometry has been around for decades, and this was not TF's first cylinder head design...

B3R3...yes, I get the idea for sure. I was going to experiment with raising the rocker shaft and see what geometry results...which I realize you are way ahead of me. My understanding is the MRE rocker arms are budget Harland and Sharp rockers, so they should use the same spacers under the...

The MRE rockers have 900 miles on them, so I took the rocker shafts off and disassembled everything. Those miles included a 200 mile endurance test with a minimal speed of 80 mph, and top speeds of 110+ mph. Thus the minimum cruise engine speed was 3700 rpm for 200 miles. I did stop once for...

Here is a photo of the banana grooves I cut in the MRE rocker shafts using an angle grinder with thin cut-off wheel (about 1/8 inch wide). Finished the shaft cuts with 600 grit emery cloth. To help valve train oiling for the .550 valve lift I tripled the amount of oil flowing to the rocker...

432 low deck. Howards hydraulic flat tappet cam, Crower lifters. MRE 1.6 roller rocker arms and MRE rocker shafts. 8.90 effective length pushrods with 5/32 radius ball/cup. Felpro .039 head gasket #1009. Rocker arm sweep contact on valve stems was approx .055 inch width, contact starting...

trail...I have that type, but was looking for something to positively compress dual valve springs...I did not make that clear in my post. thanks.

Any recommendations for valve spring compressor with engine in car? Comp and Proform offer spring compressors. The Comp handle looks like it may interfere with the fenderwell, power brake booster, etc. Would think the Comp is better quality than the Proform. Search thru this forum did not...

Here is Mancini Racing MRE roller rocker, 1.6 ratio, made by Harland Sharp, but a budget version of their full roller rocker. According to a forum moderator on the dodge charger forum these rockers are good for up to 400 lb open spring pressure and hold up well. These MRE rockers do not have...

I just mocked up crane iron rockers, crane gold with roller tip, and oem stamped rocker just for interest. With valve closed the Crane iron rocker contacts the valve stem at near stem centerline (see Photo). Rocker contact "rocks" toward exhaust side of valve stem, then the rocker starts to...

The information sheet IQ52 posted shows minimum bore size of 4.32 inch. The bore size on my 383/432 is 4.28, that is of course .02 inch less radius...not much. Is the trick flow minimum bore due to combustion chamber size, or valve diameter, or?? Can someone measure the combustion chamber...

Gather all info measured from your parts to fill out a static/dynamic compression ratio calculator, such as: https://www.uempistons.com/index.php?main_page=calculators&type=comp&zenid=dbd552556747ec33237d796b8b5145a3 For the intake closing point, use the actual number listed on the cam specs...

Perfacar - Ok, I will ditch the pushrod oiling and assemble with engine oil. Moper - what are you doing to increase topside oil volume? flycut the cam journal at each oil hole to increase the degrees of rotation when oil flows, or cut a full circumference groove in the cam journal for...

Fair enough. So just heavy duty engine oil? How to fill the rocker shafts with oil without turning the cam to just the right clock position? Or should I find the cam clock position vs crankshaft clock position to allow oil to each rocker shaft while pre-oiling? Moper - I will replace the...

I did not. I thought maybe the lifter location in the lifter bores or lifter internal design had an effect on whether the lifters were allowing oil to the pushrods or not. School me on this...should oil have been leaving the tops of the pushrods regardless of lifter position in the...

Ok I preoiled the engine block, so the lifters should have had oil real soon on start-up. I'll look again at pushrod cup and ball diameters, lifter cup diameter, and rocker adjuster ball.

Thanks for the replies. Lifters are Crower, and are AMC type with provision to pushrod oil. Rocker arms are Crane iron, they have internal groove to provide oil to rocker shaft and adjuster end. Rocker adjusters are out 2 threads, so they should be receiving oil from rocker arm. Are the...

432 "B" engine, Crower hyd street cam with .50 valve lift, Comp single valve springs with 120# seat and under 300# open. Smith Bros ball/cup pushrods with thru the pushrod oiling activating Crane 1.5 ratio iron rocker arms. After approx 600 miles the cup ends of most of the pushrods (not all...

I appreciate the responses. I had a Ford Fe with 4 bolts per cylinder, 90ftlb head bolt torque spec, bored/honed without torque plates, and the rings looked similar to CP's photos, and that engine burned oil. At the top of the cylinders you could easily see where the rings were not touching the...

383/432 bored 30 over, honed wth NO torque plates. Can I run moly rings or am I better off with iron rings that will wear into the bores? Trying to not have oil blowby the rings. I assume I cannot torque plate hone it now without leaving the pistons too loose in the bores. thanks

My 1968 383, C-body 2bbl had all pistons .026 below deck with very little variation.

My 69 383 2bbl came with a forged crank. Block was cast 5-69, and main/rod bearings stamped mid-69, it had never been apart.

The 400 will be the same as Mopar 383. My 383 with Crower hydraulic flat tappet cam, Crane Gold rocker arms either 1.5 or 1.6 ratio, Mopar 906 iron heads, block decked .026 inch, heads cut .010 inch.... ball/cup pushrod length is 8.10 inch with 2 threads showing on the rocker arm adjuster as per...

Crane Gold roller rocker arms I checked cam lobe lift vs valve lift with checking spring, measuring lift at the valve spring retainer with a Blue Point magnetic dial indicator. The 1.5 Gold rocker ratio came out to 1.59, and the 1.6 Gold rocker ratio was 1.69. The Gold rockers fit correctly...

So, I weighed the car (me and an Ebody) with the new 383/432 engine....4000 lbs. Thats with iron heads, iron exhaust manifolds, alum intake manifold along with alum water pump and pump housing. This compares to the small block 360 with iron heads, headers, and alum intake/water pump/pump housing...

Some shops advertise torque plate bore and hone. Maybe just a purist but I'd be all for it if they can do it. In my experience the blocks with only 4 head bolts per cylinder have/can have problems with bore distortion when the head bolts are torqued down....These type blocks seem to really...

I am 4speed. Rear ratio is 3.23, car is heavy 3900 lb, so need lots of TQ to move it. Tires are 24 inch tall mickey thompson street tires. Electric pump is Mallory...said to run quieter than Holley elec pumps. I had a Carter electric pump, but it would not let the mechanical pump pull thru it...

IF you can, find a machine shop that can torque plate hone the cylinders. I had no one like that to go to...always a hassle to get the oil rings to seat in.

I have been over busy at work all summer. Finally have the new 432 dialed in. So here it is. This big block pulls an Ebody around with no problem. A mild big block with iron exhaust has much stronger torque everywhere than a built 360 with headers. So the extra cubes really help. Moly...