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Got rebuild done & now getting knock at low boost , 5psi. Only thing changed on new build is ; - compression up to 9.1 from about 8.2. - entire new fuel system, from 255l pump & stock lines upgraded to 400 lph pump & -8 lines. Knock starts rapidly at 5psi , whether at WOT or 1/4 throttle...

Am trying to install a converter onto the trans (200 4r) but it will not go on all the way. Looks to be about 1" away from fully seating. These 2 parts have been together before for a few thousand miles, but have been apart for a couple years during a engine refresh. Have done lots of...

does a 0016 block use a buick or BBC rear main seal ? It has a cast rear cap. Anyone have a pic showing the 2 different seals ? thanks

Just opened a clevite main bearing set & one upper bearing has less groove than the rest. question is which location is this bearing supposed to go in ?

Last fall needed to move a GN that had been parked for years. Pulled the cam sensor & primed the oiling system to lube the bottom end. Thrust washer of cam sensor got damaged then removing so installed new sensor. Car didnt run very well but drove it across the shop. Now need to move the car...

Used power plate for stock plenum $40 shipped.

87 GN wiring harness Includes Oval conduit & plastic housing that bolt to valve covers $200 shipped

Am firing up the Ttype for first time in a few years & need to build oil pressure before turning engine over. Don't really want to pull the cam sensor as may have to start the engine every few months & repeatedly removing cam sensor will be a pita. Anyone use a preoiler to fire up their...

Melted 1 piston in a fresh engine I did not build, so dont know brand of piston. Was hoping a brand name would be on underside of piston , but no luck there. Anyone recognise these ? 4" diameter, 6.5" rod, 3.625 stroke Engine Originally assembled around 2000. With custom pistons...

My engine torques over & touches hood. Could solve problem with H&R mount, but car is very light weight & dont want solider mounts shaking the car. Dont have an easy location to mount a torque strap. So is there any old school methods to limiting the stock mount from moving to much ? Would...

Any opinions on which is better ? Tapered or gasket seat plugs in GN1 heads ? Thinking of autolite brand for ease of finding locally.

Any tips on removing the input shaft check valve ? Tried expanding it like suggested in transgo non lock kit, but it just slid back into shaft.

Anyone know what the correct clearance is for camshaft bearings ? Bought a set & they seam alot looser than the old ones .

Pro Torque " ProDrive "10.5 lock up converter for sale. Put about 2000 miles on it, returned for checkup last winter , & put about 500 miles on it last summer. In a regular weight GN should stall @ 2900rpm. It didnt spool a 70 turbo in my 2800# car that well. In a regular weight GN with...

In searching this question , nowhere did I find it written which way the offset is placed. Shorter sides of rods go toward each other like in above pic ?

Ideas on cause of this ?

Anyboby added a race muffler , or resenator , to their single exhaust to quiten it down ?

Comp Cams 218 / 224 billet roller cam & nose button 12 used hydraulic roller lifters and 2 extra NEW spare lifters 12 valve springs 12 pushrods Rollmaster timing chain set Pushrods & springs were installed with GN1 heads All parts look almost new, very little wear to be seen. $650 shipped

OBX Racing Billet housing Dual port turbo internal wastegate actuator Actuator has a billet aluminum housing. Diaphram is replaceable and actuator arm is adjustable. Includes aluminum mounting bracket. Very good condition . $60 plus shipping.

Am trying to track down a loud ticking noise. Will xfi go into a bank or batch fire mode ? If so would the injectors possibly be loud enough to sound like a bad lifter ? Thanks