loop custom post type

loop.php

<?php
$args = array( 
	'post_type' => 'post',
	'posts_per_page' => 4, 
	'paged' => $paged
);
$loop = new WP_Query( $args );
while ( $loop->have_posts() ) : $loop->the_post();?>
	<h2><a href="<?php the_permalink();?>"><?php the_title();?></a></h2>
	<span class="date"><?php the_date();?></span>
	<?php the_content();?>
<?php endwhile;?>