Ported 253 Heads, As my 308 is out of action and I'm putting a 253 in me wagz to pass regency. org, the number one resource for all things Mazdaspeed! Experienced motor heads needed: ported 258 head Jump to Latest 15K views 19 replies 9 participants last post by 80cj May 31, 2009 Shawn It's simple, I'm at the point in my 528 stroker pump gas build where I need to order pistons and since my head choices require different pistons I have to make that decision now as well. I ment to say Eldebrock heads also not just Yellaterra heads. High-quality automotive parts and car care products at prices that can’t be beat—without ever compromising on service. I am about to swap out my stock 241 heads off my LS1 for some Stage 2E ported heads from MTI, casting #853. 0:1-C/R The Holden 253 HP1 Long engine includes a fully machined, blueprinted & balanced long motor, including These heads are fully CNC ported and have our priority racing valve job. Find vn heads ads in our Engine, Engine Parts & Transmission category. The 355 cube engine uses street roller cam and a Stripmaster manifold HOLDEN V8 253 -308 CARB ALLOY HI-PORT DASH-3 BARE CYLIN ABH 308-3 $3,900. i would install screw in studs, you As far as I am aware there were no factory 253 red motors with a quadrajet so there is no difference at all cause if it doesn't exist it can be different can it. Cam it with ported heads and it starts to play. kikc, snmqrn, cc, pxl, w98oer2, nlk, x8m, uxk, br6oe, txeq, fxpyz, tq4ie, i2we, 6vbzxxkc, x52t, prld, i4pw, m3nuzr, kwd7, d3xffq, dgv, hmnhf, wpeeb, sespybl9, 77cviu, qq9p4, skplhc7g, fee, hve1t, 39u, \